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Acetylene gas, C2H2, is used for welding. A 5-liter supply of acetylene being stored at -23ÂșC, exerts a pressure of 5 atm. At what temperature would the same number of moles of acetylene, moved to a 10-liter container, produce a pressure of 2 atm?

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    Use PV = nRT and solve for n using the first conditions. Use that n and PV = nRT and solve for T using the second conditions. Don't forget T must be in kelvin.

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