How much heat is required to convert 12.0 g of ice at-10.0 degrees C to steam at

Question

How much heat is required to convert 12.0 g of ice at-10.0 degrees C to steam at100.0 degrees C ? Express your answer injoules. How much heat is required to convert 12.0 g of ice at10.0 degrees C to steam at100.0 degrees C? Express your answerin calories. How much heat is required to convert 12.0 g of ice at-10.0 degrees C to steam at100.0 degrees C ? Express your answer injoules. How much heat is required to convert 12.0 g of ice at10.0 degrees C to steam at100.0 degrees C? Express your answerin calories.

Explanation / Answer

heat from -10 to 0 C Q1 = mass*Cp*T = 12 g * (2.03 J/g/C)*(0 - (-10))C = ___ J melt at 0 C Q2=6.01 kJ/mol *(1 mol/18 g)*(12 g)*1000 J/kJ = ____ J heat from 0C to 100 C Q3=12 g*(4.184 J/g/C)*(100 C - 0 C) = _____ J vaporize at 100 C Q4=12 g *(1 mol / 18g) *(40.79 kJ/mol)*(1000 J/1kJ) = ____ J Total heat = sum of all heats =Q1+Q2+Q3+Q4 Total heat = _____ J

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