Answer
The cooling curve of that process is represented by the drawing:
- The segment represented by "d" corresponds to the condensation of the steam, that occurs at 100$^{\circ}$ C.
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Work Step by Step
You can use the figure on the bottom of the page 81 as the basis to draw the cooling curve.
Since the boiling point of water is at 100$^{\circ}$, the steam releases energy and freezes at that temperature.
