Draw a conclusion, based on the solubility curves shown above, of which compound would have the greatest percentage recovered
after cooling a saturated solution of that compound from 90°C to 30°C?
A. KC
B. NaNO3
C. NaCl
D. KNO3

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.