T = 16.7 Degree C
Ice at −20∘C is added to 50g of water at 40∘C . When the temperature of the mixture reaches 0∘C , it is found that 20g of ice is still unmelted. The amount of ice added to the water was close to (specific heat of water 4.2J/g/∘C ) Specific heat of Ice 2.1J/g/∘C Heat of fusion of water at 0∘C=334J/g.