The incorrect statements are (b), (d) and (e), so the correct choice is Option B.
- (b) is false:
ΔH for a phase change does depend on how strong the intermolecular forces are-you must supply enough energy to overcome them.
- (d) is false: Enthalpy is a state function, so
ΔH depends only on initial and final states, not on the path.
- (e) is false: Many ionic salts dissolve endothermically (
Δ soll
∘>0 ); only some give off heat on dissolving (
ΔsolH∘​<0 ).
(a) and (c) are both true.