JEE Main · PhysicsHard
A gas follows the equation of state . What is the change in internal energy for an isothermal expansion from to ?
- A.
- B.
- C.
- D.
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Correct answer: B —
Solution
For any gas where the equation of state is of the form , the internal energy is a function of temperature only. Since the process is isothermal, the change in internal energy is zero.
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