Question
Question: A copper block of mass 2 kg is heated to a temperature of 500<sup>0</sup>C and then placed in a larg...
A copper block of mass 2 kg is heated to a temperature of 5000C and then placed in a large block of ice at 00C. What is the maximum amount of ice that can melt ? The specific heat of copper is 400 J kg–10C–1 and latent heat of fusion of ice is
3.5 × 105 J kg–1 :
A
34kg
B
56kg
C
78kg
D
910kg
Answer
78kg
Explanation
Solution
2 × 400 × 500 = m × 3.5 × 105
4 = m × 3.36 ̃ m = 3.564kg = 3540 = 78kg