Chemical Thermodynamics Question 343

Question: Which of the following statements/relationships is not correct in thermodynamic changes-

Options:

A) $ \Delta U=0 $ (isothermal reversible expansion of a gas)

B) $ w=-nRT $ In $ \frac{V_2}{V_1} $ (isothermal reversible expansion of an ideal gas)

C) $ w=nRT $ In $ \frac{V_2}{V_1} $ (isothermal reversible expansion of an ideal gas)

D) For a system of constant volume heat involved directly changes to internal energy.

Show Answer

Answer:

Correct Answer: C

Solution:

For isothermal reversible expansion. $ w=-nRT,ln\frac{V_2}{V_1} $



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