Chemical Thermodynamics Question 126

Question: If gas, at constant temperature and pressure expands then its [MH CET 2003]

Options:

A) Entropy increases and then decreases

B) Internal energy increases

C) Internal energy remains the same

D) Internal energy decreases

Show Answer

Answer:

Correct Answer: C

Solution:

We know that internal energy of a gas depends upon its pressure and temperature. Thus if a gas expands at constant temperature and pressure, then its internal energy remains same.



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