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Argon is stored in a container of volume 2 litres at a pressure of 3 atmospheres....

Argon is stored in a container of volume 2 litres at a pressure of 3 atmospheres. The amount of gas present is 0.2 mole The gas is allowed to expand to a final volume of 4 litres while the temperature is held constant. Find

  1. the final pressure of the gas, and (ii) the work done on the gas. Explain the significance of the sign of the work term.

You may assume that argon behaves as an ideal monatomic gas. The atomic mass of argon is 40 g•mol-l . One atmosphere = 1.01 x 10 5 Pa.

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