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2.      An ideal monatomic gas is compressed while its temperature is held constant. What happens to the internal energy of the gas during this process and why?

In the PV diagram above, the initial state of a gas is shown at point X. Which of the curves represents a process in which no work is done on or by the gas? XA XB XC XD XE ------------------------------------------------------------------------------------------ 2. An ideal monatomic gas is compressed while its temperature is held constant. What happens to the internal energy of the gas during this process and why? It decreases because the gas does work on its surroundings. It decreases because the molecules of an ideal gas collide. It does not change because the internal energy of an ideal gas depends only on its temperature. It increases because work is done on the gas. It increases because the molecules travel a shorter path between collisions.

Explanation / Answer

1)Xb since volume is costant( work=pv) and in xb process volume is constant (isochoric)
2) 3 internal energy only depends upon temperature( provided the gas is ideal)

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