5 A monoatomic gas undergoes the unusual process of MPN in the pressure vs. volu

Question

5 A monoatomic gas undergoes the unusual process of MPN in the pressure vs. volume graph shown below. Which one of the following choices properly represents the signs of the internal energy change, dU, the total energy transferred as heat to the gas, Q and the total amount of work done by the gas on the surroundings, W for this process? Explain. A) Positive Negative Positive (B) Negative Positive Negative (C) Negative Negative Negative (D) Positive Positive Negative (E) Negative Negative Positive

Explanation / Answer

Answer is D

Due to decrease of volume and pressure internal energy of the gas will increases.

Due to increase internal energy of gas temperature and heat energy also increases.

Extra work has to be done by surrounding... Hence work done on surrounding is negative...

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