Question

Choose the correct answer. A thermodynamic state function is a quantity 

(i) used to determine heat changes 

(ii)whose value is independent of path 

(iii) used to determine pressure volume work 

(iv) whose value depends on temperature only

Answer 1

A thermodynamic state function is a quantity whose value is independent of a path. 

Functions like p, V, T etc. depend only on the state of a system and not on the path. 

Hence, alternative (ii) is correct.