Question

Where did water become gas?
F
E
Temperature (°C)
В
Time (minutes)
O A-B
OB-C
OE-F
OD-E

Answer 1

Answer: Water becomes gas at D-E.

Explanation:
In the flat line D-E water is absorbing energy to become gas, and when the water is completely gas, the temperature will increase again therefore the line will rise up.