Answer:
40,000J
Explanation:
The heat energy required to raise the temperature of unit mass of substance through unit degree is called specific heat of substance . As given 2000J energy is needed to heat 1 kg of paraffin through 1
o
C, therefore specific heat of paraffin will be 2000J/kg−
o
C.
Now, heat energy required to raise the temperature of mass m of substance (specific heat c) through Δt is given by ,
Q=mcΔt,
Given: m=10kg,Δt=2
o
C,c=2000J/kg−
o
C
Q=10×2000×2=40,000J
