How many grams of water at 17oC must be added to 42g of ice at...

JAMB 1998

How many grams of water at 17^oC must be added to 42g of ice at 0^oC 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 Answer: Option A

Explanation

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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How many grams of water at 17oC must be added to 42g of ice at...

Correct Answer: Option A

Explanation

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