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COMEDK2022ChemistryThermodynamics (C)

Which of the following are not path functions? I. H-T S II. W II. q IV. q+W

Options

  1. AI and III
  2. BI, II, IV
  3. CII, III and IV
  4. DI and IV

Correct answer

D. I and IV

Step-by-step solution

A path function is a property whose value depends on the path taken to reach a state, whereas a state function depends only on the initial and final states of the system. The term H - TS represents the Gibbs free energy, G = H - TS . Since H , T , and S are all state functions, their combination G is also a state function. Work ( W ) and heat ( q ) are well-known path functions as they depend on the process by which the system changes state. According to the first law of thermodynamics, q + W = U . Since the intern

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