Ethanol, with AHvan = 40.5 kJ mol1, has a higher AHvap than methanol, which is 35.2 kJ mol1, due to its larger %3D size and greater intermolecular forces. Because the AHvap for ethanol is larger, we would expect that for the two liquids to reach the same vapor pressure, the temperature for ethanol would haye to be higher. If the vapor pressure is 0.0992 atm at 27.3 °C, what would the temperature be when the vapor pressure is 2.17 atm? The temperature will be

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Ethanol, with AHvap = 40.5 kJ mol1, has a higher AHvap
than methanol, which is 35.2 kJ mol-1, due to its larger
size and greater intermolecular forces. Because the
AHvap for ethanol is larger, we would expect that for
the two liquids to reach the same vapor pressure, the
temperature for ethanol would haye to be higher. If
the vapor pressure is 0.0992 atm at 27.3 °C, what
would the temperature be when the vapor pressure
is 2.17 atm?
The temperature will be
i
K.
Transcribed Image Text:Ethanol, with AHvap = 40.5 kJ mol1, has a higher AHvap than methanol, which is 35.2 kJ mol-1, due to its larger size and greater intermolecular forces. Because the AHvap for ethanol is larger, we would expect that for the two liquids to reach the same vapor pressure, the temperature for ethanol would haye to be higher. If the vapor pressure is 0.0992 atm at 27.3 °C, what would the temperature be when the vapor pressure is 2.17 atm? The temperature will be i K.
Expert Solution
Step 1

Given data,Hvap for ethanol=40.5kJ/molInitial pressure (P1)=0.0992atmInitial temperature(T1)=27.3oC=27.3+273.15=300.45KFinal pressure(P2)=2.17atmFinal temperature (T2)=?

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