At 100°C, Kp = 60.6 for the reaction2NOBr(g) 2NO(g) +

Chapter 17, Problem 29P

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QUESTION:

Problem 29P

At 100°C, Kp = 60.6 for the reaction

2NOBr(g) ⇌ 2NO(g) + Br2(g)

In a given experiment, 0.10 atm of each component is placed in a container. Is the system at equilibrium? If not, in which direction will the reaction proceed?

Questions & Answers

QUESTION:

Problem 29P

At 100°C, Kp = 60.6 for the reaction

2NOBr(g) ⇌ 2NO(g) + Br2(g)

In a given experiment, 0.10 atm of each component is placed in a container. Is the system at equilibrium? If not, in which direction will the reaction proceed?

ANSWER:

Solution 29P:

Here, we are going to explain about the equilibrium as well as the direction of the reaction.

Step 1:

Given reaction,

2NOBr(g) ⇌ 2NO(g) + Br2(g)

Therefore, the reaction quotient (Q) in terms of pressure for the reaction is defined as

----(1)

Thus, we know that

  1. when Q < K, the reactants would be large relative to the products.Therefore, the reaction proceeds towards right to form more product, until equilibrium is reached.

           Thus, Reactant Products, when Q < K

  1. when Q > K, the product would be decrease with increase in reactant. Therefore, the reaction proceeds towards left, until equilibrium is reached.

            Thus, Reactant Products, when Q > K

       (c) It can be happened only when the reactant and product concentrations have attained their  equilibrium values.Therefore, there is no net change in the reaction.

        Thus, Reactant Products, when Q = K.


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