Answer:
It requires the addition of 2000 calories
Explanation:
- The quantity of heat is calculated by multiplying the mass of a substance by the change in temperature and the specific heat capacity of the substance.
That is; Q = m×c×ΔT
In this case;
m = 100 grams
ΔT = 60°C-40°C
= 20°C
Specific heat capacity,c,=1 cal/g
Thus;
Q = 100 g × 20°C × 1 cal/g
= 2000 calories
