Among the following, the set of parameters that represents path functions, is:
i) $q + w$
ii) $q$
iii) $w$
iv) $H - T S$

Question

Among the following, the set of parameters that represents path functions, is: i) q + w ii) q iii) w iv) H - T S

TestHub · Accepted Answer

State function:

It is a property of which value does not depend on the path only depends upon the initial and final point

Like: Internal energy $(U)$ , Gibb's free energy $(G)$

Path function: Does not depend upon the initial and final point like heat energy $(q)$ and work done $(w)$ .

$(A) q + w = Δ U \leftarrow definite quantity$
$(B) q \to$ Path function
$(C) w \to$ Path function
$(D) H - T S = G \to$ State function.

$∴$ Answer is $(1)$

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