Question

Of the following systems, which contains the most heat?

a. 100 kg of water at 80°C

b. 250 kg of water at 40°C

c. 600 kg of ice at 0°C

d. Systems do not contain heat.

Answer 1

Answer:d

Explanation:

Given systems are state of matter and do not contain any heat instead Heat is required to change Phase or raise the temperature of the particular system.

For example 600 kg of ice at $0^{\circ}C$

Heat Required to convert it to water at $0^{\circ}C$ is

$Q=m\times L$

Where L=latent heat of Fusion $=334 J/gm$

$Q=600\times 334\times 1000$

$Q=200.4 MJ$