Question

Calculate the amount of heat required to raise the temperature of 5kg

of water from 200

C to 500

C . Sp. Heat capacity of water is 4200J/kgK . ​

Answer 1

Quantity of heat required to raise 5 kg of water from 20 0C to 1000C is given by the formula:Q=m×c×ΔT(Q is usually used to symbolize that heat required in a case like this.) For water, the value of . C is 4.186Jg°C.So,Q=750×4.186×85=266858J=266.858kJDT = temperature difference =100-20=80 0C.