Question

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Will the concentration of NO2 increase, decrease, or remain the same when the equilibrium NO2Cl (g) + NO (g) eq NOCl (g) + NO2 (g) is disturbed by the following changes?
A)Adding NOCl

B)Adding NO

C)Removing NO

D)Adding NO2Cl
Please detailed explanation

Answer 1

According to LECHATLIERS principle, When a system at equilibrium is subjected to some stress (change in concentration or pressure or temperature) theequilibrium shifits in a direction to nullify the stress.

A : Adding NOCl ,   [NO₂ ] will decreaases. By increasing the concentration of product backward reaction will more favoured according to Lechatliers principle.

B: Adding NO , [NO₂ ] will increases.By increasing concentration of reactant forward reaction will more favoured.

C: Removing NO ,[NO₂ ] will decreases.Backward reactin will more favoured.

D: Adding NO₂Cl , [NO₂] will increases.Forward reaction will more favoured.