The brown gas NO2 and the colourless gas N2O4 exist in equilibrium. N2O4(g) (2NO2(g) 0.625 mole of N2O4 was introduced into a 5.00 L vessel and was allowed to decompose until it reached equilibrium with NO2. The concentration of N2O4 at equilibrium was 0.0750 M. Calculate Kp for the reaction.

b) nuclear ive learned that in a pedtrodic table

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.