Which of the following statements are true?
I. In a spontaneous process, the path between reactants and products is reversible.
II. The reaction of nitrogen atoms to form N2 molecules at 25° C and 1 atm is spontaneous.
III. The melting of a solid is spontaneous above its melting point but nonspontaneous below its melting point.
IV. The condensation of a liquid will be reversible if it occurs at any temperature other than the boiling point at a specified temperature.
V. When a piece of metal is heated to 150° C and added to water, the fact that the water gets hotter is an example of a spontaneous process.
a) I, II, III
b) II, III, IV
c) II, III, V
d) III, IV, V
e) I, III, V
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