how much heat energy is required to raise the temperature of 5 kilograms of coal from 20 degrees celsius to 220 degrees celsius?

Question

You will need the specific heat capacity for coal...you can look that up in a table in your text..

Heatenergy=masscoal*specificheatcoal*(change in temperature)

=5kg*c*(220-20)C
look up c, specific heat for coal, and you have it.