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How Much Energy (Heat) Is Required to Convert 52 \circ C to Steam at 100

Question 66

Multiple Choice

How much energy (heat) is required to convert 52.0 g of ice at -10.0 \circ C to steam at 100 \circ C

specific heat of ice: 2.09 J/gCΔHfus=6.02 kJ/mol \quad 2.09 \mathrm{~J} / \mathrm{g} \cdot{ }^{\circ} \mathrm{C} \quad \Delta \mathrm{H}_{\mathrm{fus}}=6.02 \mathrm{~kJ} / \mathrm{mol}
specific heat of water: 4.18 J/gCΔHvap=40.7 kJ/mo 4.18 \mathrm{~J} / \mathrm{g}{ \cdot}^{\circ} \mathrm{C} \quad \Delta \mathrm{H}_{\mathrm{vap}}=40.7 \mathrm{~kJ} / \mathrm{mo} .
specific heat of steam: 1.84 J/gC 1.84 \mathrm{~J} / \mathrm{g} \cdot{ }^{\circ} \mathrm{C}


A) 40.2 kJ
B) 157.8 kJ
C) 1,086 kJ
D) 2,570 kJ
E) 22,957 kJ

Correct Answer:

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