how much heat is needed to convert 1 kg of water to steam at 100 degree Celsius and 1 kg of ice to water at zero degree celsius
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1 kg = 1000 grams of water
Q = mL
L - Latent heat of vapourisation of water= 540 calories/gram
Q = 1000 (540)
Q = 540 kcal is required to convert 1 kg of water to steam.
Q = mL
L- Latent heat of fusion = 80 cal/g
Q = 1000(80)
Q = 80 kcal is required to convert 1 kg of water to ice.
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