A container of ideal gas has a movable frictionless piston. This container is pl

Question

A container of ideal gas has a movable frictionless piston. This container is placed in a very large water bath and slowly compressed so that the temperature of the gas remains constant and equal to the temperature of the water. Which of the following statements about this gas are true for this process? (There may be more than one correct choice.)

A. The work done by the gas is negative, and heat must be added to the system.

B. The work done by the gas is positive, and no heat exchange occurs.

C The internal energy of the system has increased.

D The internal energy of the system has decreased.

Explanation / Answer

Temp of gas remains constant.

hence there will be no change in its internal energy.

Gas is compressed hence work done by the gas is negative.

Ans; (A)

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