Calculate the ratio of effusion rates for ar and kr

Ratio=1.44

Explanation:

According to Graham's law of effusion, the ratio of effusion rates for two gases can be written as:

Ratio =

Where M1 and M2 are the molar masses of the gases. In this case, M1 is the atomic mass of  Kr (83.798) and M2 is the atomic mass of Ar (39.948).

Ratio =

Thus Ar effuses 1.44 times faster than Kr

it is the most commonly accepted one

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.