The reactionN2O4−⇀↽−2NO2is allowed to reach equilibrium in a chloroform solution at 25 ∘C . The equilibrium concentrations are 0.327 mol/L N2O4 and 1.91 mol/L NO2 .Calculate the equilibrium constant, Kc , for this reaction.Kc= 11.16  An additional 1.00 mol NO2 is added to 1.00 L of the solution and the system is allowed to reach equilibrium again at the same temperature. Select the direction of the equilibrium shift after the NO2 is added.towards the producttowards the reactantno changeDetermine how the addition of extra NO2 in the previous step will affect the rate constant, Kc .Kc will increaseKc will not changeKc will decreaseCalculate the equilibrium concentrations of N2O4 and NO2 after the extra 1.00 mol NO2 is added to 1.00 L of solution.[N2O4]= mol/L[NO2]= mol/L

Question
Asked Jan 27, 2020
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The reaction

N2O4−⇀↽−2NO2

is allowed to reach equilibrium in a chloroform solution at 25 ∘C . The equilibrium concentrations are 0.327 mol/L N2O4 and 1.91 mol/L NO2 .

Calculate the equilibrium constant, Kc , for this reaction.

Kc= 11.16
 
 
An additional 1.00 mol NO2 is added to 1.00 L of the solution and the system is allowed to reach equilibrium again at the same temperature. Select the direction of the equilibrium shift after the NO2 is added.
towards the product
towards the reactant
no change
Determine how the addition of extra NO2 in the previous step will affect the rate constant, Kc .
Kc will increase
Kc will not change
Kc will decrease
Calculate the equilibrium concentrations of N2O4 and NO2 after the extra 1.00 mol NO2 is added to 1.00 L of solution.
[N2O4]=
 
mol/L
[NO2]=
 
mol/L
 
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Expert Answer

Step 1

The equilibrium constant can be calculated from the given reaction is

Chemistry homework question answer, step 1, image 1
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Step 2

According to Le-Chatelier\'s Principle

At equilibrium, any changes of concentration, pressure and other reaction conditions etc then reaction will shift in a forward direction

 Therefore, right option is: Towards the reactants

From the above expression of Kc, Kc will decrease

[NO2] = 1 mol/L

 

 

Chemistry homework question answer, step 2, image 1
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Step 3
Chemistry homework question answer, step 3, image 1
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