10 gm of ice at – 20°C is dropped into a calorimeter containing 10 gm of water at 10°C; the specific heat of water is twice that of ice. When equilibrium is reached, the calorimeter will contain
Text Solution
Verified by ExpertsThe correct answer is:
B
Heat lost by water to cool from 
to 
Heat gained by ice to rise its temperature from 
to 
Since heat lost = heat gained, therefore the equilibrium temperataure is 
. Also at 
there will be ice only. Hence the calorimeter will contain 
i.e 20 g ice.
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