Part B How much heat is required to convert 21.5 g of ethanol at -150 °C to the vapor phase at 78 °C? Express your answer using two significant figures. VE ΑΣΦ Q= Submit Request Answer → www ? kJ

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Chapter14: Liquids And Solids
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Problem 4QAP: he enthalpy (H)of vaporization of water is about seven times larger than water’s enthalpy...
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Part B
How much heat is required to convert 21.5 g of ethanol at -150 °C to the vapor phase at 78 °C?
Express your answer using two significant figures.
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Transcribed Image Text:▼ Part B How much heat is required to convert 21.5 g of ethanol at -150 °C to the vapor phase at 78 °C? Express your answer using two significant figures. VE ΑΣΦ Q= Submit Provide Feedback Request Answer B ? kJ
Ethanol (C₂H5OH) melts at -114 °C and boils at
78 °C. The enthalpy of fusion of ethanol is 5.02
kJ/mol, and its enthalpy of vaporization is 38.56
kJ/mol. The specific heat of solid and liquid
ethanol are 0.97 J/g-K are 2.3 J/g-K
respectively.
Transcribed Image Text:Ethanol (C₂H5OH) melts at -114 °C and boils at 78 °C. The enthalpy of fusion of ethanol is 5.02 kJ/mol, and its enthalpy of vaporization is 38.56 kJ/mol. The specific heat of solid and liquid ethanol are 0.97 J/g-K are 2.3 J/g-K respectively.
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