Consider a cylinder of a monatomic ideal gas which has a volume of 2 liters and

Question

Consider a cylinder of a monatomic ideal gas which has a volume of 2 liters and a pressure of 2 atmospheres at 300 K. If you halve the volume to 1 liter keeping the temperature constant at 300 K, what can you say about the internal energy of the gas (U), the work done on the gas (W), and the heat transferred to the gas (Q)?

A. W > 0, Q > 0, and U increases.
B. W < 0, Q > 0, and U increases.
C. W < 0, Q > 0, and U stays the same.
D. W < 0, Q < 0, and U stays the same.
E. W > 0, Q > 0, and U stays the same.
F. W > 0, Q < 0, and U stays the same.
G. W < 0, Q < 0, and U increases.
H. W > 0, Q < 0, and U increases.
I. W > 0, Q > 0, and U decreases.
J. W > 0, Q < 0, and U decreases.

Explanation / Answer

F. W > 0, Q < 0, and U stays the same.

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