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: Option C
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