Calculate the rate of temperature change from time 0 to time 4

the rate of temperature change from time 0 to time 4 is - 2 °C/time unit.

Explanation:

the average rate of change = (final temp - initial temp)/time  

average rate of change = (28-36)/4

                                        = - 2 °C/time unit

Therefore, the rate of temperature change from time 0 to time 4 is - 2 °C/time unit.

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.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8