A liquid, X, was allowed to cool in air. The temperature was measured every five secds. The graph below represents the cooling curve of X. (a) What is the melting point of X?
(b) What is the room temperature? Explain your answer.
(c) X has a boiling point of 128°C. Explain, in terms of the kinetic particle theory, what happens to the particles of X as it is heated from 100°C to 150°C.
(d) In which parts of the graph is energy being given out to the surroundings?​

16

explanation:

the marks go by 4s

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.