In: Chemistry
From the data below, calculate the total heat (in J) needed to convert 0.535 mol of gaseous ethanol at 300.0°C and 1 atm to liquid ethanol at 25.0°C and 1 atm:
b.p. at 1 atm: 78.5°C
ΔH o vap : 40.5 kJ/mol
cgas: 1.43 J/g·°C
cliquid: 2.45 J/g·°C
______J
here is the answers, please see the images.
N.B-heat change at constant pressure is equal to the enthalpy change of the system.