(a) Repeat the ethanol example of Sec. 7.3 using the average of the 25°C and 78.3°C ΔvapHm values instead of the 78.3°C value. Compare the result with the experimental 25°C vapor pressure, (b) The actual molar volumes of ethanol vapor in the temperature and pressure ranges of this example are less than those predicted by PVm = RT. Will inclusion of nonideality of the vapor improve or worsen the agreement of the result of (a) with the experimental 25°C vapor pressure?
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