Water of mass 0.4 kg loses 210kJ of energy when taken from the Earth’s surface...

Water of mass 0.4 kg loses 210kJ of energy when taken from the Earth’s surface to Mars of surface temperature – 60o. The water temperature decreases until the water freezes. The temperature of ice formed decreases until it becomes equal to that on Mars. Calculate the temperature of the water while on Earth.

(Specific latent heat of fusion of ice = 3.3 x 105 Jkg-1; specific heat capacity of water = 4200 Jkg-1K-1 ; specific heat capacity of ice = 2100 Jkg-1K-1. )

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Asked by Francy on 23rd May, 2022