At a given temperature, pentane with a vapor pressure of 624 torr is mixed with hexane with a vapor pressure of 437 torr. In the solution, the mole fraction of pentane is 0.3 and the mole fraction of hexane is 0.7. Which of the following is true about the mole fraction of pentane in the vapor? a. It is greater than 0.3
b. It is less than 0.3
c. It is equal to 0.3

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.