(b) (7 marks) A 0.20 kg block of copper is heated in a laboratory oven to a temperature of 180∘C. It is added to an insu

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B 7 Marks A 0 20 Kg Block Of Copper Is Heated In A Laboratory Oven To A Temperature Of 180 C It Is Added To An Insu 1 (95.18 KiB) Viewed 36 times

(b) (7 marks) A 0.20 kg block of copper is heated in a laboratory oven to a temperature of 180∘C. It is added to an insulated container of ice and water. The mass of ice is 0.10 kg and the mass of water is 0.90 kg, and both water and ice are at a temperature of 0∘C. i) Calculate the heat required to melt all the ice in the container. ii) Calculate the heat released if the 0.20 kg block of copper is cooled from 180∘C to 0∘C. iii) Find the final temperature of the contents of the container. Neglect the heat capacity of the container. Assume no heat is lost to the surroundings. The specific heat capacity of copper is 381 J kg−1 K−1 The specific heat capacity of liquid water is 4.19 kJ kg−1 K−1 The latent heat of fusion of water is 333 kJ kg−1 The latent heat of vaporisation of water is 2260 kJ kg−1