What determines whether something is a solid, liquid or a gas?​

its not a answer but do you bts

how exited the atoms are

Explanation:

if the atoms are more exited or having more energy will change how the atoms act in the environment. the same goes for being less exited or having less energy.

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.