Water of mass 3.0kg initially at 200c is heated in an electric kettle rated 3.0kw. The water is heated until it boils at 1000c. (Take...

      

Water of mass 3.0kg initially at 200c is heated in an electric kettle rated 3.0kw. The water is heated until it boils at 1000c. (Take specific heat capacity of water = 4200Jkg-1k-1, Heat capacity of kettle = 450Jk-1, and specific latent heat of vaporization of water = 2.3MJkg-1)

Determine;

(i) The heat absorbed by water.

(ii) The heat absorbed by the electric kettle.

(iii) The time taken by water to boil.

(iv) How much longer will it take to evaporate all the water?

  

Answers


Maurice
(i) Q1522820191158.png


(ii) Q1522820191200.png


(iii) Q1522820191203.png


(iv) Q1522820191206.png
maurice.mutuku answered the question on August 22, 2019 at 09:07


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