Question on: JAMB Physics - 1998
How many grams of water at 17oC must be added to 42g of ice at 0oC to melt the ice completely? [specific latent heat of fusion of ice = 3.4 x 105Jkg-1, specific heat capacity of water = 4200Jkg-1k-1]
A
200g
B
300g
C
320g
D
400g
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Correct Option: A
Heat lost = Heat gained
mc(\theta) = mL
m x 4200 x 17 = 42 x 3.4 x 105
therefore, m = 200g
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