Question
Liquid hexane at 298 K and 1 bar has the following properties: thermal expansion coefficient () = 5.2x10-4 K-1 isothermal compressibility () = 17.5x10-10 Pa-1
Liquid hexane at 298 K and 1 bar has the following properties: thermal expansion coefficient () = 5.2x10-4 K-1 isothermal compressibility () = 17.5x10-10 Pa-1 molar volume (v) = 1.30x10-4 m3/mole critical temperature (Tc) =507 K critical pressure (Pc) =29.7 bar
NOTE : if you use scientific notation you must use upper case E for the exponent, e.g. 5.0E-3 = 0.0050
1. Calculate the change in molar volume if the pressure is increased from 1 bar to 30 bar at 298 K (m3/mole).
2. Calculate the change in molar entropy if the pressure is increased from 1 bar to 30 bar at 298 K (J/mole-K).
3. Calculate the change in molar enthalpy if the pressure is increased from 1 bar to 30 bar at 298 K (J/mole).
4. Calculate the change in molar gibbs energy if the pressure is increased from 1 bar to 30 bar at 298 K (J/mole).
5. Use the van der Waals equation to calculate the pressure required to contain 100 moles of hexane vapor in a volume of 0.0800 m3 at 600 K. (bar)
6. Calculate the change in molar entropy if the pressure of hexane vapor is increased from 1 bar to 30 bar at 600 K. (J/mole-K)
7. Calculate the change in molar enthalpy if the pressure of hexane vapor is increased from 1 bar to 30 bar at 600 K. (J/mole)
8. Calculate the change in molar gibbs energy if the pressure of hexane vapor is increased from 1 bar to 30 bar at 600 K. (kJ/mole)
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