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A reaction is catalysed by H^{+} ion. In the presence of an ac

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A reaction is catalysed by $H^{+}$ ion. In the presence of an acid $H A$ , the rate constant is $2 \times 1 0^{- 3} mi n^{- 1}$ and in the presence of an acid $H B$ , the rate constant is $1 \times 1 0^{- 3} mi n^{- 1}$ . Given $H A$ and $H B$ both being strong acids, we may conclude that:

equilibrium constant is 2

H A

is stronger acid than

H B

relative strength of

H A

and

H B

2

H A

is weaker acid than

H B

and their relative strength is

0.5

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A reaction is catalysed by

H^{+}

ion. In the presence of an acid

H A

, the rate constant is

2 \times 1 0^{- 3} mi n^{- 1}

and in the presence of an acid

H B

, the rate constant is

1 \times 1 0^{- 3} mi n^{- 1}

. Given

H A

and

H B

both being strong acids, we may conclude that:

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Text solutionVerified

The rate constant of the reaction in the presence of

H A

2 \times 1 0^{- 3} mi n^{- 1} .

This value is twice the rate constant for the reaction in the presence of

H B

, which is

1 \times 1 0^{- 3} mi n^{- 1} .

Greater the value of rate constant of acid, greater is the acidic strength.

Thus, HA is a stronger acid than HB and relative strength of

H A

and

H B

is 2.

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Question Text	A reaction is catalysed by $H^{+}$ ion. In the presence of an acid $H A$ , the rate constant is $2 \times 1 0^{- 3} mi n^{- 1}$ and in the presence of an acid $H B$ , the rate constant is $1 \times 1 0^{- 3} mi n^{- 1}$ . Given $H A$ and $H B$ both being strong acids, we may conclude that:
Answer Type	Text solution:1
Upvotes	150

A reaction is catalysed by H+ ion. In the presence of an acid HA, the rate constant is 2×10−3min−1 and in the presence of an acid HB, the rate constant is 1×10−3min−1. Given HA and HB both being strong acids, we may conclude that:

Text solutionVerified

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A reaction is catalysed by $H^{+}$ ion. In the presence of an acid $H A$ , the rate constant is $2 \times 1 0^{- 3} mi n^{- 1}$ and in the presence of an acid $H B$ , the rate constant is $1 \times 1 0^{- 3} mi n^{- 1}$ . Given $H A$ and $H B$ both being strong acids, we may conclude that: