Q. Which of the following are not state functions? (I) q + w (II) q (III) w (IV) H − TS
A) (II) and (III)
B) (I) and (IV)
C) (II), (III) and (IV)
D) (I), (II) and (III)
Explanation
[Solution from source] Heat q and work w depend on the path, so they are not state functions. Their sum q + w equals ΔU, and H − TS is the Gibbs energy G; both depend only on the state. So only q and w are not state functions. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.