Bán kính của nguyên tử X, ion X+,X2+, X-,X2- theo thứ tự tăng dần

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.

i wish i could but this one is weird give me abc and i can solve it.

the correct answer would be b) volume versus temperature, because they are also directly proportional.