Match the following graphical variation with their description
(a) Variation in product concentration with time
(b) Reaction at Equilibrium
(c) Variation in reactant concentration with time
• Le chatlier principle: If a system at Equilibrium experiences a change in any factor that determines the Equilibrium then the Equilibrium tends to shifts in a manner as to counteract the imposed change in the Equilibrium
Explanation: According to Le chatlier principle as the time passes accumulation of products occur and depletion of reactant i.e. reaction will proceed in the forward direction.
Explanation: According to Le chatlier principle as time passes accumulation of reactant occurs and depletion of product i.e. the reaction will proceed in the backward direction.
Explanation: According to Le chatlier principle as time passes equal attainment of reactant and product occurs and chemical Equilibrium is obtained. It can be obtained from either direction.
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Which of the following reactions will get affected by increasing the pressure? Also, mention whether change will cause the reaction to go into forward or backward direction.
(i) COCl2 (g) ⇌CO (g) + Cl2 (g)
(ii) CH4 (g) + 2S2 (g) ⇌CS2 (g) + 2H2S (g)
(iii) CO2 (g) + C (s) ⇌ 2CO (g)
(iv) 2H2 (g) + CO (g) ⇌ CH3OH (g)
(v) CaCO3 (s) ⇌CaO (s) + CO2 (g)
(vi) 4 NH3 (g) + 5O2 (g) ⇌ 4NO (g) + 6H2O(g)NCERT - Chemistry Part-I
Dihydrogen gas is obtained from natural gas by partial oxidation with steam as per following endothermic reaction:
CH4 (g) + H2O (g) ⇌ CO (g) + 3H2 (g)
A. Write as expression for Kpfor the above reaction.
B. How will the values of Kpand composition of equilibrium mixture be affected by
(i) increasing the pressure
(ii) increasing the temperature
(iii) using a catalyst?NCERT - Chemistry Part-I