Need !
1) if water is at 50° c, and energy is removed from the water until it is at -10° c (while
maintaining a constant pressure of 760 mm), describe the phase change of the water.
a) solid water to water vapor
b) solid water to liquid water
c) liquid water to solid water
d) liquid water to water vapor

2 )at a constant pressure, freezing occurs by
a) absorbing energy.
b) releasing energy.
c) conducting energy.
d) circulating energy.