As shown in figure below, an ideal gas is confined to a cylinder by a piston. The piston is pushed down slowly so that the gas temperature remains at 27°C. During the compression, 900 J of work is done on the gas. Find the entropy change of the gas.

As shown in figure below, an ideal gas is confined to a cylinder by a

1.	As shown in figure below, an ideal gas is confined to a cylinder by a piston. The piston is pushed down slowly so that the gas temperature remains at 27°C. During the compression, 900 J of work is done on the gas. Find the entropy change of the gas.
A.	3 J/K
B.	-3 J/K
C.	-6 J/K
D.	6 J/K
Answer» C. -6 J/K

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As shown in figure below, an ideal gas is confined to a cylinder by a piston. The piston is pushed down slowly so that the gas temperature remains at 27°C. During the compression, 900 J of work is done on the gas. Find the entropy change of the gas.

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