help with this question?
Scuba divers breathe air from steel tanks carried on their backs.The tanks contain air at a pressure of 2.0 x 10to the power of 7 Pa. At atmospheric pressure, this air would occupy a volume of 2.5 metres cubed.
Explain in terms of kinetic theory of gases:
1) how the air exerts a pressure on the inside of the steel tank
2)why the pressure in the tank increases when the tank is left out in the sun
3) why the pressure inside the tank decreases as air is released
Research it yourself, look on Wikipedia
Making Worthing Steel Scuba Cylinders
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Back in ’02 … when there were wooden tanks and steel men: Tales from the dark ages of scuba diving $2.99 … |
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Corrosion studies of steel scuba tanks (Scuba safety report series) … |
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Corrosion of steel and aluminum scuba tanks (Marine technical report – University of Rhode Island) … |
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Pure Energy N2 Compressed Air Tank (72ci/3000psi) $69.95 The 72 is one of Pure Energy’s pro level air systems. This system combines a popular bottle and the top-of-the-line Pure Energy Reactor regulator. The Pure Energy Reactor regulator has a preset output pressure set between 800-900 PSI. This air-system works great with any marker on the market, from Piranhas to Angels. Because Pure Energy Reactor regulators are now re-buildable, this system is one o… |
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Citizen Men’s JY0050-55L Eco-Drive Blue Angels Skyhawk A-T Chronograph Titanium Watch $671.25 and chock full of innovative features, the Men’s Blue Angels Skyhawk A-T Chronograph Titanium Watch from Citizen Eco-Drive combines aviator-inspired style with a sleek, sporty design. Offering a maximum power reserve of 180 days, with a low charge warning within three days of stop point, this distinctive timepiece is both reliable and up for the next adventure. It also features a durable, hardened… |
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Wheeled Scuba Tank Boot – Scuba Tank N Tow – Colors Vary $1.42 Wheeled SCUBA Tank Boot – Scuba Tank n Tow Made from polycarbonate and reinforced polypropylene with a stainless steel axle and hardware, this scuba tank boot allows you to roll your tank easily over sand, mud, parking lots, and pool sides. Features include: |
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Blue Steel 2009 Faber High Pressure Steel Tank – 100 cu, 12.9L $404.95 If you are not using steel cylinders, try to use one and you will soon realize what you have been missing. Faber can offer you the most comprehensive range of cylinders for Scuba Diving. Every year we produce and sell around the world 100.000 cylinders for scuba diving (out of 600.000 in totals). No other manufacturer in the world can match our capabilities and the breadth of our range. Faber Tanks and valves are nitroxready. Cylinders come equipped with a DIN/K type valve that easily converts back and forth depending on the type of First-Stage Regulator to be used in conjunction with the cylinder increasing the versatility of the tank. Steel cylinders are heavier then the same capacity aluminum cylinder. This characteristic has many advantages. The heavier construction allows the diver to remove lead weight fromtheir weight belt or integrated weight system of the BCD, allowing the diver to better distribute weight by moving it to the rear of the BCD a great advantage when wearing a back inflation style (Wing) BCD. Aluminum cylinders as we breathe the weight of air from them create positive buoyancy at or near the end of a dive. The steel cylinder with its negative buoyancy throughout the dive allows you to shed the excess lead that is requiredto keep you properly trimmed while you dive an aluminum cylinder. Faber HP cylinders have a round bottom and come equipped witha cylinder boot. Faber Tank, – Din /K type Valve – Tank Boot When shipped the tanks valves will be removed and the tank will require re-inspection before being filled |
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Blue Steel Faber Low Pressure Steel Tank – 85 cu, 13L $269.95 If you are not using steel cylinders, try to use one and you will soon realize what you have been missing. Faber can offer you the most comprehensive range of cylinders for Scuba Diving. Every year we produce and sell around the world 100.000 cylinders for scuba diving (out of 600.000 in totals). No other manufacturer in the world can match our capabilities and the breadth of our range. Faber Tanks and valves are nitroxready. Cylinders come equipped with a DIN/K type valve that easily converts back and forth depending on the type of First-Stage Regulator to be used in conjunction with the cylinder increasing the versatility of the tank. Steel cylinders are heavier then the same capacity aluminum cylinder. This characteristic has many advantages. The heavier construction allows the diver toremove lead weight from their weight belt or integrated weight system of the BCD, allowing the diver to better distribute weight by moving it to the rear of the BCD a great advantage when wearing a back inflation style (Wing) BCD. Aluminum cylinders as we breathe the weight of air from them create positive buoyancy at or near the end of a dive. The steel cylinder with its negative buoyancy throughout the dive allows you to shed the excess lead that is requiredto keep you properly trimmed while you dive an aluminum cylinder. Faber LP cylinders have a round bottom and come equipped with a cylinder boot. |
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Blue Steel Faber Low Pressure Steel Tank – 95 cu, 15L $319.95 If you are not using steel cylinders, try to use one and you will soon realize what you have been missing. Faber can offer you the most comprehensive range of cylinders for Scuba Diving. Every year we produce and sell around the world 100.000 cylinders for scuba diving (out of 600.000 in totals). No other manufacturer in the world can match our capabilities and the breadth of our range. Faber Tanks and valves are nitroxready. Cylinders come equipped with a DIN/K type valve that easily converts back and forth depending on the type of First-Stage Regulator to be used in conjunction with the cylinder increasing the versatility of the tank. Steel cylinders are heavier then the same capacity aluminum cylinder. This characteristic has many advantages. The heavier construction allows the diver toremove lead weight from their weight belt or integrated weight system of the BCD, allowing the diver to better distribute weight by moving it to the rear of the BCD a great advantage when wearing a back inflation style (Wing) BCD. Aluminum cylinders as we breathe the weight of air from them create positive buoyancy at or near the end of a dive. The steel cylinder with its negative buoyancy throughout the dive allows you to shed the excess lead that is requiredto keep you properly trimmed while you dive an aluminum cylinder. Faber LP cylinders have a round bottom and come equipped with a cylinder boot. |
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Catalina Pony Bottle Tanks, Yellow with Pro Valve – 13 Cu. $112.95 A pony bottle is a smaller tank, which is carried in addition to the main tank. It possesses its own regulator with first and second stage and sometimes a separate pressure gauge. It will is mounted either at ones side or in front of the body or fixed to the main tank. A pony bottle scuba tank is the only true redundant breathing mechanism you can completely rely on. Depending on the type of diving you plan on doing will determine what capacity the redundant air supply needs to be. Leisure Pro offers five different size bottles to meet every divers requirements. If used for sport diving there are three choices 6, 13 and 19 cu ft cylinders. If deep or deep technical diving or wreck penetration or cave diving there are the 30 and 40 cu ft cylinders available. With Pro Valve, the Pro Valve is one of the highest flow cylinder valves available today and is also a convertible valve. Whether you dive Yoke or DIN regulators this valve will work for both. Valve has easily removed 200 bar DIN insert to convert the valve for use with DIN regulators. Valve has a heavy duty deign with a smooth operating mechanism and multi-ported burst disc plug for added safety. Aluminum cylinders unlike steel cylinders don’t rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation ofcorrosion making aluminum cylinders less likely to be condemned due to excessivecorrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. All Catalina cylinders are nitrox Ready! |
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Catalina Pony Bottle Tanks, Yellow with Pro Valve – 19 Cu. $132.95 A pony bottle is a smaller tank, which is carried in addition to the main tank. It possesses its own regulator with first and second stage and sometimes a separate pressure gauge. It will is mounted either at ones side or in front of the body or fixed to the main tank. A pony bottle scuba tank is the only true redundant breathing mechanism you can completely rely on. Depending on the type of diving you plan on doing will determine what capacity the redundant air supply needs to be. Leisure Pro offers five different size bottles to meet every divers requirements. If used for sport diving there are three choices 6, 13 and 19 cu ft cylinders. If deep or deep technical diving or wreck penetration or cave diving there are the 30 and 40 cu ft cylinders available. With Pro Valve, the Pro Valve is one of the highest flow cylinder valves available today and is also a convertible valve. Whether you dive Yoke or DIN regulators this valve will work for both. Valve has easily removed 200 bar DIN insert to convert the valve for use with DIN regulators. Valve has a heavy duty deign with a smooth operating mechanism and multi-ported burst disc plug for added safety. Aluminum cylinders unlike steel cylinders don’t rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation ofcorrosion making aluminum cylinders less likely to be condemned due to excessivecorrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. All Catalina cylinders are nitrox Ready! |
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Catalina Pony Bottle Tanks, Yellow with Pro Valve – 30 Cu. $146.95 A pony bottle is a smaller tank, which is carried in addition to the main tank. It possesses its own regulator with first and second stage and sometimes a separate pressure gauge. It will is mounted either at ones side or in front of the body or fixed to the main tank. A pony bottle scuba tank is the only true redundant breathing mechanism you can completely rely on. Depending on the type of diving you plan on doing will determine what capacity the redundant air supply needs to be. Leisure Pro offers five different size bottles to meet every divers requirements. If used for sport diving there are three choices 6, 13 and 19 cu ft cylinders. If deep or deep technical diving or wreck penetration or cave diving there are the 30 and 40 cu ft cylinders available. With Pro Valve, the Pro Valve is one of the highest flow cylinder valves available today and is also a convertible valve. Whether you dive Yoke or DIN regulators this valve will work for both. Valve has easily removed 200 bar DIN insert to convert the valve for use with DIN regulators. Valve has a heavy duty deign with a smooth operating mechanism and multi-ported burst disc plug for added safety. Aluminum cylinders unlike steel cylinders don’t rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation ofcorrosion making aluminum cylinders less likely to be condemned due to excessivecorrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. All Catalina cylinders are nitrox Ready! |
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Catalina Pony Bottle Tanks, Yellow with Pro Valve – 40 Cu. $169.95 A pony bottle is a smaller tank, which is carried in addition to the main tank. It possesses its own regulator with first and second stage and sometimes a separate pressure gauge. It will is mounted either at ones side or in front of the body or fixed to the main tank. A pony bottle scuba tank is the only true redundant breathing mechanism you can completely rely on. Depending on the type of diving you plan on doing will determine what capacity the redundant air supply needs to be. Leisure Pro offers five different size bottles to meet every divers requirements. If used for sport diving there are three choices 6, 13 and 19 cu ft cylinders. If deep or deep technical diving or wreck penetration or cave diving there are the 30 and 40 cu ft cylinders available. With Pro Valve, the Pro Valve is one of the highest flow cylinder valves available today and is also a convertible valve. Whether you dive Yoke or DIN regulators this valve will work for both. Valve has easily removed 200 bar DIN insert to convert the valve for use with DIN regulators. Valve has a heavy duty deign with a smooth operating mechanism and multi-ported burst disc plug for added safety. Aluminum cylinders unlike steel cylinders don’t rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation ofcorrosion making aluminum cylinders less likely to be condemned due to excessivecorrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. All Catalina cylinders are nitrox Ready! |
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Catalina Pony Bottle Tanks, Yellow with Pro Valve – 6 Cu. $92.95 A pony bottle is a smaller tank, which is carried in addition to the main tank. It possesses its own regulator with first and second stage and sometimes a separate pressure gauge. It will is mounted either at ones side or in front of the body or fixed to the main tank. A pony bottle scuba tank is the only true redundant breathing mechanism you can completely rely on. Depending on the type of diving you plan on doing will determine what capacity the redundant air supply needs to be. Leisure Pro offers five different size bottles to meet every divers requirements. If used for sport diving there are three choices 6, 13 and 19 cu ft cylinders. If deep or deep technical diving or wreck penetration or cave diving there are the 30 and 40 cu ft cylinders available. With Pro Valve, the Pro Valve is one of the highest flow cylinder valves available today and is also a convertible valve. Whether you dive Yoke or DIN regulators this valve will work for both. Valve has easily removed 200 bar DIN insert to convert the valve for use with DIN regulators. Valve has a heavy duty deign with a smooth operating mechanism and multi-ported burst disc plug for added safety. Aluminum cylinders unlike steel cylinders don’t rust, they oxidize. The oxidization of aluminum forms a protective coat that hinders the continuation ofcorrosion making aluminum cylinders less likely to be condemned due to excessivecorrosion. When shipped the tanks valves will be removed and the tank will require re-inspection before being filled. All Catalina cylinders are nitrox Ready! |
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XS Scuba 8.00 Octagon Tank Boot for Steel Tanks $12.95 Steel Cylinders have round bottoms and need to have a cylinder boot. XS Scuba’s Cylinder Boots are manufactured using high quality injection-molded construction with a self-draining and durable design. The boot is equipped with an octagon rim to prevent the cylinder from rolling while it is lying down. Boot protects the cylinder bottom from damage and allows the diver to stand the cylinder up right to aid in regulator and BCD mounting. Boot is designed for cylinders with an 8.0 diameter. |
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XS Scuba Worthington Cylinders HP Steel 3442 psi. Tanks – X7-120, 15.3L $399.95 The steel cylinders are manufactured at Worthington Cylinder’s state of the art facility in Tilbury, Canada. The cylinders are manufactured using the Deep Draw and Ironing (DDI) process. Cylinders start from a circular plate of chrome-moly steel. Multiple draws on a hydraulic press transform the plate into an open ended shell. The shell is then closed, the neck is formed and the threads are machined. The DDI process produces the most consistence wall thickness resulting in the lightest weight, most efficient cylinders. This manufacturing process is what allows us to supply cylinders with the best buoyancy characteristics for scuba diving. During the process of Hot Dip Galvanizing, the exterior of our steel cylinders are submerged into 840?F molten zinc. The process deposits an 8 – 10 mil thick zinc barrier to protect against the corrosive ocean environment. This layer of zinc metallurgically bonds to the steel cylinder. It will not chip and wear away like a painted zinc finish. XS Scuba is so confident that exterior rust will not be an issue, we guarantee it for the life of the cylinder. If the exterior of your XS Scuba HDG steel cylinder rusts, we’ll correct it for as long as you own the cylinder, without cost to you. Steel Cylinder Features: Manufacturing Process Built from Chromium Molybdenum steel plates Utilizes the deep drawn process; the preferred method to build a SCUBA steel cylinder This process yields a cylinder with a very uniform wall thickness resulting in a lighter, more efficient cylinder. Buoyancy Superior buoyancy characteristics These cylinders have been designed to be slightly negative at the end of a dive Exterior Finish A three-step, rust-preventative process Consists of shotblasting, protective zinc coating, followed by a durable powder coat finish. Interior Finish Highly-resistant to internal rusting Phosphatized interior Nitrox Ready Cleaned and sealed at the factory Free of hydrocarbons to a level of 40 mg per |