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How many Joules of heat are required to change 4.5Kg of ice at -15 deg. C to steam at 121 deg.C at constant extemal pressure

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How many Joules of heat are required to change 4.5Kg of ice at -15 deg. C to steam at 121 deg.C at constant extemal pressure of 1 atm marks) 1. The specific heat of ice =2060J/Kg deg.C 2. Specific Latent heat of fusion of ice =334000J/Kg 3. Specific heat of liquid water =4186J/Kg deg.C 4. Specific latent heat of vaporization of liquid water =2260000J/Kg 5. Specific heat of vapor =1870J/Kg deg.C

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