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An electric heater of power 1000 W raise...

An electric heater of power 1000 W raises the temperature of 5 kg of a liquid from `25^@`C to `31^@`C in 2 minutes. Calculate : (i) the heat capacity, and (ii) the specific heat capacity of liquid.

Text Solution

Verified by Experts

Heat given by the sphere
`= (1000) (1//2) (80-30) = 25,000cal`
Heat absorbed by the water calorimeter system
`= (9000 (1) (40 -30) + (200) (1//2) (40 -30)`
`10,000cal`
So heat loss to surrounding `= 15,000 cal` .
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