Question

Calculate the heat energy required to raise the temperature of 5kg of water from 10 degree Celsius to 90 degree Celsius.
Specific heat capacity of water is 4200J/kg K​

Answer 1

Explanation:

Given :

Mass =5kg

T

1

=20

∘

C,T

2

=100

∘

C

ΔT=100−20=80

∘

C

Q=m×C×ΔT

where C= specific heat capacity of water

=4200J/(kgK)

Q=5×4200×80

=1680000 Joule.

=1680KJ