A copper calorimeter has mass of 180 g and contains 450 g of water and 50 g of ice, all at `0^(@)C`. Dry steam is passed into the calorimeter until a certain temperature `(theta)` is reached. The mass of the calorimeter and its contents at the end of the experiment increased by 25 g. Assume no heat loss to the surrounding and take specific heat capacities of water and copper to be `4200 J kg^(-1) K^(-1)` and `390 J kg^(-1) K^(-1)`, respectively. Take specific latent heat of vaporization of water to be `3.36 xx 10^(5) J kg^(-1)` and `2.26 xx 10^(6) J kg^(-1)` respectively. (a) Find the final temperature `theta` (b) If steam enters into the system at a steady rate of `5 g min^(-1)`, plot the variation of temperature of the system till final temperature `theta` is attained.
