A) Process 1 is a reversible, physical change while process 2 is an irreversible, physical change.
B) Process 1 is an irreversible, physical change while process 2 is an irreversible, chemical change.
C) Process 1 is a reversible, physical change while process 2 is an irreversible, chemical change.
D) None of these.
Correct Answer: C
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