Question

plzz tell me which one is state function and which one is path function : 1) work 2) heat 3) energy 4) entropy 5) enthalpy​

Answer 1

Examples of state function include (1) internal energy, (3) volume, and (4) pressure. This is because a state function is a value in which is dependent on the state of that particular system. The value of a change in a state function is always the difference between the final and initial values.

Path function is something which cannot be plotted on thermodynamic property diagrams as points. It rather depends on path followed in a process .For example heat and work. Point functions are those which can be plotted on thermodynamic property diagrams like pressure , volume ,temperature, entropy ,enthalpy , etc..