1. A For the reaction A —>B, the Keq' is 10-6. If a reaction mixture originally contains 1 mmol

Step 1: Understand the concept of equilibrium constant (Keq). The equilibrium constant, Keq, is

1. A For the reaction A —>B, the Keq' is 10-6. If a reaction...

1. A For the reaction A --->B, the Keq' is 10-6. If a reaction mixture originally contains 1 mmol of A and 1 mmol of B, which one of the following must be true? A) At equilibrium, there will be still be equal levels of A and B. B) The rate of the reaction is very slow. C) At equilibrium, the amount of A will greatly exceed the amount of B. D) The reaction will proceed toward B at a very high rate. E) Delta G'° for the reaction will be large and positive.

Transcript

00:01 Hello students in the question you have a reaction a gives rise to b where equilibrium constant is given as 10 .6 and they are asking if the reaction mixture originally contains 1 mm of a and 1 millimole of b then what happens so there are four statements are given so we should choose one correct statement so the first statement says at equilibrium there will be still equal levels of a and b so what is equilibrium equilibrium so the equilibrium is a state at which the concentration of a and concentration of b are in equal amounts so then we will say it is at equilibrium so here also they are saying at equilibrium there will be still equal levels of a and b so it is correct statement and next statement they are saying that the rate of the reaction is very slow so the rate of reaction are from forward and backward are equal in rates so at a rate of reaction are equal in rates so at a equilibrium.

01:32 So at equilibrium, the rate of forward reaction and the rate of backward reaction is equal and the rate of reaction is very slow that we can't say.

01:45 It is, it may be fast or slow.

01:49 It will be equal in forward direction and backward direction.

01:55 So it is not correct.

01:57 And the next one is at equilibrium, the amount of of a will greatly exceed it.

02:05 So a will greatly extended the amount of b they are saying.

02:14 So here the amount of a and b will be same, not means in equal ratio, not exceeded nor in a decrease.

02:25 So this also wrong statement and the fourth statement of the reaction will proceed towards b at very high rate...

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