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1. |
What do 1, 2, 3 and 4 in the processes shown below represent? \[Water\xrightarrow{1}Steam\xrightarrow{2}Water\] \[Ice\xrightarrow{3}Water\xrightarrow{4}Steam\] |
A. | 1-heat, 2-cool, 3-cool, 4-heat |
B. | 1-heat, 2-cool, 3-heat, 4-heat |
C. | Freezing |
D. | 1-cool, 2-cool, 3-heat, 4-cool |
Answer» C. Freezing | |