Problem 13.81 Will the concentration of NO2 increase, decrease, or remain the sa

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Problem 13.81

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

Part A

Adding NOCl.

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Part B

Adding NO.

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Part C

Removing NO.

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Part D

Adding NO2Cl; also account for the change using the reaction quotient Qc.

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Problem 13.81

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

Part A

Adding NOCl.

Adding . [NO2] will increase. [NO2] will decrease. [NO2] will remain the same.

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Part B

Adding NO.

Adding . [NO2] will increase. [NO2] will decrease. [NO2] will remain the same.

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Part C

Removing NO.

Removing . [NO2] will increase. [NO2] will decrease. [NO2] will remain the same.

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Part D

Adding NO2Cl; also account for the change using the reaction quotient Qc.

Adding ; also account for the change using the reaction quotient . [NO2] will increase. [NO2] will decrease. [NO2] will remain the same.

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Explanation / Answer

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.

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

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

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

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

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