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What is the change in internal energy

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1. A sample of an ideal monatomic gas at 1 atm pressure and 25oCexpands reversibly and isothermally from 1 liter to 4 liters. Determine the work done during the expansion.

2. A cylinder containing 1 mole of liquid water at 100oC is heated until the liquid is converted to vapour. The cylinder is fitted with a piston which just resists a pressure of 1 atm. How much work is done by the expanding gas? If the heat of vaporization of water is 40670 joules, what is the change in internal energy?

Reference no: EM132749399

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