Question: QUESTION THREE (20 MARKS) 3 a) Define specific latent heat of fusion [2marks] b) 5 kg of ice at a temperature of -4 C

QUESTION THREE (20 MARKS) 3 a) Define specific latent heat of fusion [2marks] b) 5 kg of ice at a temperature of -4 C

QUESTION THREE (20 MARKS) 3 a) Define specific latent heat of fusion [2marks] b) 5 kg of ice at a temperature of -4 C is converted to water at a temperature of 75 C. Calculate the quantity of heat used. (Take specific heat capacity of ice 2100 J/kg/k, specific latent heat of fusion of ice 1.7105J/Kg, specific heat capacity of water 4200 J/kg/k) [7marks] c i) Explain why heat transfer is faster in metal conductors than in non metals ii) Explain the three modes of heat transfer d) Differentiate between evaporation and boiling [2marks] [6marks] [3 marks]

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