Suppose we vaporize a mole of liquid water at 25 °C and another mole of water at 100 °C.
(a) Assuming that the enthalpy of vaporization of water does not change much between 25 °C and 100 °C, which process involves the larger change in entropy?
(b) Does the entropy change in either process depend on whether we carry out the process reversibly or not? Explain.