JEE Mains Model Paper 21

Question : 28 of 90

Marks: +1, -0

Water of volume 2 litre in a container is heated with a coil of 1 kW at. The lid of the container is open and energy dissipates at the rate of 160 J/s. In how much time temperature will rise from 27°C to 77°C ? [Given specific heat of water is 4.2 kJ/kg|