Which of the following is true for a heating curve? O A. It shows how the pressure of a substance changes when heated. OB. It shows how the temperature of a substance changes when heated. ОС. It shows how the volume of a substance changes when heated. OD It shows how the mass of a substance changes when heated.​

Changes to the amount of energy through thermal transfer is most appropriate to show changes in the to temperatures of the substances as there is an increase in the thermal energy in the closed system. The increase in molecular energy through the heating process is what happens when the energy is transferred from one compound to another.

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.