How many grams of water at 17oC must be added to 42g of ice at 0oC to melt the i...
Question
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]Options
A) 200g
B) 300g
C) 320g
D) 400g
Related Lesson: Temperature Change and Heat Capacity | Heat and Heat Transfer Methods
The correct answer is 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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Heat lost = Heat gained
mc\(\theta\) = mL
m x 4200 x 17 = 42 x 3.4 x 105
therefore, m = 200g