COMEDK · Physics · 13. Thermodynamics
From the following \(p\)-V diagram, an ideal gas undergoing a change of state from \(A\) to \(B\). Four different processes I, II, III and IV as shown in the figure may lead to same change of state.
- A Work done is minimum in case II
- B Change in internal energy is same in all the four cases
- C Change in internal energy is same in IV and III cases, but not in I and II
- D None of these
Answer & Solution
Correct Answer
(B) Change in internal energy is same in all the four cases
Step-by-step Solution
Detailed explanation
The internal energy \(U\) of an ideal gas is a state function, which depends only on the temperature \(T\) of the gas. For an ideal gas, the internal energy is given by \(U = \dfrac{f}{2} nRT\), where \(f\) is the degrees of freedom. Since the change of state is from \(A\) to…
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