1kg of copper is transferred quickly from boiling water to a block of ice. Calculate...
PHYSICS
JAMB 1990
1kg of copper is transferred quickly from boiling water to a block of ice. Calculate the mass of ice melted, neglecting heat loss. [specific heat capacity of copper 400Jkg-1K-1 and latent heat of fusion of ice 333 x 103Jkg-1]
- A. 60g
- B. 67g
- C. 120g
- D. 133g
Correct Answer: C. 120g
Explanation
Heat lost = heat gained
1 x 400 x (100 - 0) = m x 333000
m = 0.12kg
converting to grams; 0.12 x 1000
= 120g
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