a. As the hydronium ion concentration increases, the pH starts to alter the chemical properties of the water molecules. stays constant. goes down. starts to affect the OH- concentration. Cannot determine from the information provided. gets larger. b. As the pH increases, the hydroxide ion concentration None of these answers is correct starts to affect the hydronium concentration. goes down. stays constant. starts to decrease because it is reacting with the excess hydronium ions. gets larger. c. When a hydronium ion concentration equals 1 x 10-10 moles per liter, what is the pH of the solufion

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.