If There Are No Heat Losses, The Heat Released By The Condensation Of xgrams Of Steam At 100oC Into Water 100oC Converts y grams Of Ice At 0oC Into Water At 100oC. The Ratio y/x is Nearly

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Question

If there are no heat losses, the heat released by the condensation of xgrams of steam at 100oC into water 100oC converts y grams of ice at 0oC into water at 100oC. The ratio y/x is nearly

Solution

Correct option is

3

 

The latent heat of vaporization of water is very nearly 540 calories per gram. Therefore heat released in the condensation of x gram of steam = 540 x calories. The latent heat of fusion of ice is very nearly 80 calories. Therefore, heat required to convent y gram of ice at 0oC to water at 100oC = 80 y + 100 y = 180 y calories. Thus

                       180 y = 540 x

or                        

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