In a series of experiments on the decomposition of dinitrogen pentoxide, n2o5, rate constants were deter- mined at two different temperatures. at 35°c, the rate con- stant was 1.4 × 10−4/s; at 45°c, the rate constant was 5.0 × 10−4/s. what is the activation energy for this reaction? what is the value of the rate constant at 65°c?

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.