Question

explain thermal dissociation with example

Answer 1

A substance undergoing thermal dissociation may form several substances (2H2O ⇄ 2H2 + O2, CaCO3 ⇄ CaO + CO2) or a single,exsimpler substance (N2O4 ⇄ 2NO2, Cl2 ⇄ 2C1). In thermal dissociation, equilibrium is attained in accordance with the law of mass action and may be characterized by either the equilibrium constant or the degree of dissociation, which is the ratio of the number of dissociated molecules to the total number of molecules. In most cases, thermal dissociation is accompanied by an absorption of heat; that is, the increment of enthalpy is greater than zero (ΔH > 0).

Answer 2

it is related to heat,it is chemical decomposition caused heat