Steam at is passed into 1.1 kg of water contained in a calorimeter of water equivalent 0.02 kg at till the temperature of the calorimeter and its contents rises to . The mass of the steam condensed in kg is
Heat is lost by steam in two stages (i) for change of state from steam at to water, (ii) to water at , where m is the mass of steam condensed.
Total heat lost by steam =
Heat gained by calorimeter and its contents = (1.1 + 0.02) (80-15) = 1.12 65 cal
Using principle of calorimetry
Heat gained = heat lost
560 m = 1.12 65
m = 0.130 gm