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Substance D has the following properties:
ΔHvap = 34.6 kJ/mol
ΔHfus = 6.3 kJ/mol
Tb = 87.9 °C
Tm = -30.9 °C
Specific Heat (solid) = 4.9 J/g·°C
Specific Heat (liquid) = 2.4 J/g·°C
Specific Heat (gas) = 1.5 J/g·°C
Calculate the energy that must be removed to convert 221.6 g of substance D from a gas at 120.9 °C to a solid at -61.9°C. The molar mass of Substance D is 75 g/mol. Enter your response to the nearest kJ
Sagot :
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