Thermodynamics Question 30

Question: One mole of helium is adiabatically expanded from its initial state (Pi,Vi,Ti) to its final state (Pf,Vf,Tf) . The decrease in the internal energy associated with this expansion is equal to

[SCRA 1994; BHU 2002]

Options:

A) Isothermal process

B) Isobaric process

C) Isochoric process

D) Adiabatic process

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Answer:

Correct Answer: D

Solution:

The process is very fast, so the gas fails to gain or lose heat. Hence this process in adiabatic



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