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How much heat (kcal) must be added to 1 kg of ice at -50oC to convert it to water (liquid) at 50oC? Cice (ice) =

How much heat (kcal) must be added to 1 kg of ice at -50oC to convert it to water (liquid) at 50oC?

Cice (ice) = 0.5 kcal/kg-oC Cw (water) = 1.0 kcal/kg-oC Cs (steam) = 0.5 kcal/kg-oC Hm (melting) = 80 kcal/kg Hv (vaporization) = 540 kcal/kg

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