Question

The solid and liquid phases of water can exist in
a state of equilibrium at 1 atmosphere of pressure
and a temperature of
(1) 0°C (3) 273°C
(2) 100°C (4) 373°C

Answer 1

Answer: 0°C

Explanation:
Water undergoes phase changes at 1 atm pressure as follows:
Solidification, change from water to ice occurs at 0°C.
Evaporation, change from liquid to gas occurs at 100°C.