Question

how much heat energy is necessary to raise the temperature of 5kg of water from 200c to 1000c​

Answer 1

Answer:

On supplying heat to it, its temperature rises to 72∘C. For every 1∘C rise in temperature per gram of water, 4.2 J of heat is needed

Answer 2

Answer:

16800000j energy is required to raise the temperature of 5kg of water from 200c to 1000c..

Explanation:

heat(q)= 5kg    

change in temoerature=800c

specific heat capacity=4200j/kg*c

required energy=mcdt

=5*4200*800

=16800000j