If a gas, at constant temperature and pressure expands, then its
If a gas, at constant temperature and pressure expands, then its
A. internal energy increases and then decreases
B. internal energy increases
C. internal energy remains the same
D. internal energy decreases
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Correct Answer - C
We know that internal energy of a gas depends upon its pressure and temperature. Thus, if a gas exapnd at constant temperature and pressure then its internal energy remains same.
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