Question

In thermodynamics, heat and work are :

(1) Path functions

(2) Intensive thermodynamic state variables

(3) Extensive thermodynamic state variables

(4) Point functions

Answer 1

Correct option is (1) Path functions

Heat and work are treated as path functions in thermodynamics.

△Q = △U + △W

Since work done by gas depends on type of process i.e. path and △U depends just on initial and final states, so △Q i.e. heat, also has to depend on process is path.