Hess's law

Hess' law is applicable for determination of enthalpy of

Hess's lavw is based on

How much heat is evolved when 12 g of CO reacts with NO_(2) ? This reaction is 4CO(g)+2NO_(2)(g)to4CO_(2)(g)+N_(2)(g),Delta_(r)H^(0)=-1200kJ Write an application of Hess’s law. Does the following reaction represent a thermochemical equation? CH_(4)(g)+2O_(2)(g)toCO_(2)(g)+2H_(2)O(g)Delta,H^(0)=-900kJmol^(-1)

Hess law