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A freezer freezes 1.5 litres of water at 30 ∘C to ice at −15∘C in 1.5 hr. What is the average approximate power of the freezer in watt? Take the specific heat capacity of water to be 4200 J kg−1 ∘C−1 and that of the ice to be 2100 J kg−1 ∘C−1. The specific latent heat of ice is 336000 J kg−1. |
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Answer» A freezer freezes 1.5 litres of water at 30 ∘C to ice at −15∘C in 1.5 hr. What is the average approximate power of the freezer in watt? Take the specific heat capacity of water to be 4200 J kg−1 ∘C−1 and that of the ice to be 2100 J kg−1 ∘C−1. The specific latent heat of ice is 336000 J kg−1. |
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