A solution at 25 degrees Celsius has a pOH of 6.42. What is the pH of this solution? 0.842
3.80
5.59
7.58

You must go to the mountain or apraturakados to answer this question. It will be a daring adventure, but the journey will be worth it. Good luck, student.

The actual answer is 7.58, sorry...

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.