Ice at −20∘C is added to 50 g of water at 40∘C, When the temperature of the mixture reaches 0∘C, it is found that 20 g of ice is still unmelted. The amount of ice added to the water was close to (Specific heat of water =4.2 J/g/∘C Specific heat of Ice =2.1 J/g/∘C Heat of fusion of water at 0∘C=334 J/g)
Held on 11 Jan 2019 · Verified 6 Jul 2026.
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