Consider the following gas-phase reaction:
2A(g) + B(g) ⇌ C(g) + D(g) an equilibrium mixture of reactants and product is subjected to the following changes:
(i) A decrease in volume
(ii) An increase in temperature
(iii) Addition of reactants
(iv) Addition of an inert gas
which of these changes affect the composition of the equilibrium mixture but leaves the value Kc unchanged
1 and 2
1,2,and 3
1,3,4
1and 3
