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Octet Rule

In the follow...

Question

In the following figures, variations of volume change by pressure is shown. A gas is taken along path ABCDA. The change in internal energy of the gas will be:

A

Positive in all cases (1) to (4)

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B

Positive in cases (1) to (2) only

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C

Negative in cases (1), (2), (3)

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D

Zero in all four cases

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Solution

The correct option is D Zero in all four cases
As the initial and final states are same in all the four cases, the change in internal energy will be zero.

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