A well insulated container has a mixture of ice and water, at `0^(@)C`. The mixture is supplied.
Channel: Doubtnut
Date: 16/02/2020

A well insulated container has a mixture of ice and water, at `0^(@)C`. The mixture is supplied heat at a constant rate of 420 watt by switching on an electric heater at time t = 0. The temperature of the mixture was recorded at time t = 150s, 273s and 378s and the readings were `0^(@)C`, `10^(@)C` and `20^(@)C` respectively. Calculate the mass of water and ice in the mixture. Specific heat of water `= 4.2 J g^(-1) .^(@)C^(-1)`, Specific latent heat of fusion of ice `= 336 J g^(-1)`. Assume that the mixture is stirred slowly to maintain a uniform temperature of its content.