Water of volume 2 litre in a container is heated with a coil of 1 kW at 27oC. The lid of the container is open and energy dissipates at rate of 160 J/s. In how much time temperature will rise from 27oC to 77oC [Given specific heat of water is 1.2 kJ/kg]?
8 min 20 s
6 min 2 s
7 min
14 min