Question

) Calculate the total time taken for a 100 W heater to heat 2 kg of ice at -20 0C to water at 30 0C. [5]
(take specific heat capacity of ice =2100 J kg-1 0C-1 ;
specific heat capacity of water 4200 J kg-1 0C-1 ;
specific latent heat of fusion of ice =340,000 J kg-1

Answer 1

Explanation:

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