A sample of pure NO2 is heated to 337 °C, at which temperature it partially dissociates according to the equation: 2 NO2( g) ∆ 2 NO( g) + O2( g) At equilibrium the density of the gas mixture is 0.520 g>L at 0.750 atm. Calculate Kc for the reaction.

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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.

answer7,570,82356 cubic centimeters;