MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryThermodynamics and ThermochemistryPrevious Year Questions

Which of the following are not state functins? (I) q + w (II) Q (III) w (IV) H – TS (2009)

A.(I), (II) and (III)

B.(II) and (III)✓ Correct

C.(I) and (IV)

D.(II), (III) and (IV)

Explanation

State function or state variables are those which depend only on the state of the system and not on how the state was reached. q w E(internal energy) State functions H – Ts = G(free energy) Path function depends on the path followed during a process. Work and heat are the path functions.

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