NEET 2019 Model Question Paper 3

2 kg of ice at -20°C is mixed with 5 kg of water at 20°C in an insulating vessel having a negligible heat capacity. Calculate the final mass of water and ice remaining in the container. It is given that the specific heats of water and ice are 1 k cal/kg/°C and 0.5 k cal/kg/°C while the latent heat of fusion of ice is 80 kcal/kg