Problem 1: At 120 °C the saturation pressure of ethanol that is 4.3 bar.
a) What is the state of ethanol at 120 °C and 10 bar (i.e., compressed liquid, saturated liquid/vapor, superheated vapor)? At 140 °Cand 1bar?
b) Can we assume that ethanol vapor at 1800 °C and 20 bar behaves as an ideal gas?
c) A rigid vessel contains 1 mol of ethanol at 1800 °C and 20 bar. How much heat must be removed in order for the pressure to drop to 10 bar?
Additional data: At 450 °C, the CP of ethanol is 123 J/mol/K.