Water of volume 2 L in a closed container is heated with a coil of 1 kW. While water is heated, the container loses energy at a rate of 160 J/s. In…

Water of volume $\displaystyle 2$ L in a closed container is heated with a coil of $\displaystyle 1$ kW. While water is heated, the container loses energy at a rate of $\displaystyle 160$ J/s. In how much time will the temperature of water rise from $\displaystyle 27$°C to $\displaystyle 77$°C ? (Specific heat of water is $\displaystyle 4.2$ kJ/kg and that of the container is negligible).