ThermodynamicsHard

Question

Entropy of universe decreases during

Options

A.crystallization of sucrose from unsaturated

B.rusting of iron

C.melting of ice at 0^o C and 1 atm.

D.vaporization of camphor above normal sublimation temperature and 1 atm.

Solution

In all spontaneous process, entropy of universe increases but for system at equilibrium, entropy of universe becomes constant.

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