ThermodynamicsHard

Question

For which of the following process, ΔS is negative?

Options

A.H2(g) → 2H(g)
B.N2 (g, 1 atm) → N2 (g, 8 atm)
C.2SO3(g) → 2SO2(g) + O2(g)
D.C (Diamond) → C (Graphite)

Solution

Entropy increases with increase in mole of gases as well as volume of gas (decrease in pressure).

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