Question

A 21 g block of ice is cooled to −77 ◦C. It is added to 593 g of water in an 92 g copper calorimeter at a temperature of 28◦C. Find the final temperature. The specific heat of copper is 387 J/kg · ◦C and of ice is 2090 J/kg · ◦C . The latent heat of fusion of water is 3.33 × 105 J/kg and its specific heat is 4186 J/kg · ◦C . Answer in units of ◦C. ( 2 significant digits pls) ​

Answer 1

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.