In: Chemistry
A 10 g ice cube at 0oC is melted in 100 g water initially at 20oC. The equilibrium temperature of the mixture is 10.93oC.
Calculate:
a) The heat lost by the water.
b) The heat gained by the melted water of the ice cube.
c) The heat absorbed by the ice to achieve melting.
A:- a) The heat lost by the water is calculated as,
Equilibrium temperature of the mixture = 10.93oC.
Initially temperature of water = 20oC,
The heat lost by the water = 4.184 joules * 100 g * 20-10.93
= 4.184 joules * 100 g * 9.07oC
= 3794.89 joules
b) The heat gained by the melted water of the ice cube = 4.184 joules * 10 g * 9.07oC
= 436.63 joules
c) The heat absorbed by the ice to achieve melting = 4.184 joules * 10 g * 9.07oC
= 436.63 joules