In which of the following changes is ∆S negative ?

a

H2O(l) → H2O(s)

b

C(s) + 1/2O2,/sub>(g) → CO(g)

c

PCI5(g) → PCl3(g) + Cl2(g)

d

NaCl(s) + aq →Na+ (aq) + Cl- (aq)

e

NH3(g) + HCl(g)

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Vdreamer
2 years ago

This have to do with entropy change which is positive.... Liquid to liquid still positive since there is orderliness

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