TS EAMCET 5 May 2018 Shift 1 Solved Paper

An electric heater with constant heat supply rate is used to convert a certain amount of liquid ammonia to saturated vapour at high pressure. The heater takes 14 minutes to bring the liquid at 15 °C to the boiling point of 50 °C and 92 minutes to convert the liquid at the boiling point wholly to vapour. If the specific heat capacity of liquid ammonia is 4.9 kJ/kg K. the latent heat of vaporization of ammonia in kJ/kg is