Among the following, the set of parameters that represents path functions is:
(i) &nbsp
(ii) &nbsp
(iii) &nbsp
(iv)

Question

Among the following, the set of parameters that represents path functions is:
(i)   &nbsp
(ii)   &nbsp
(iii)   &nbsp
(iv)

Canvas Classes · Accepted Answer

Strategy:
 Identify quantities that are dependent on the specific process (path) rather than just the final and initial equilibrium states.

Step 1: Evaluate each parameter
- (i) : According to the First Law, . Since Internal Energy change is a state function, the sum  is a state function.
- (ii) : Heat is inherently a path function.
- (iii) : Work is inherently a path function.
- (iv) : This expression defines Gibbs Free Energy (). Since  are all state functions,  is a state function.

Step 2:

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