9. A reversible process ... 10. For the calculation of Q and W, an actual process may be replaced by any other process that accomplishes the same change in state. 11. For an aqueous solution of methanol in equilibrium with its vapor, the number of degrees of freedoms according to the phase rule is: 12. A fluid existing at a temperature greater than Te is said to be supercritical. 13. In an isochoric process, volume remains constant and Q=0. 14. Ideal gas equations are not valid at higher pressures, and more complex equations are needed in those cases. 15. The compressibility factor for a moderated temperate process is greater than the compressibility factor of an ideal gas