For reaction 3BrO- - BrO-3 - 2Br- the value of rate constant at 80- C in the rate for - -d-BrO-dt was found to be 0-054 L mol-1 s-1- The rate constant k for the reaction in terms of d-BrO-3-dt is -

The correct option is A 0.018 L mol^ 1 s^ 1 For the given reaction #160; 1/3 #160; d[BrO^⊖]/dt =d[BrO^⊖_3]/dt = #160;1/2 #160;d[Br]/dt ...

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Byju's Answer

Standard XII

Chemistry

Nucleophilic Substitution in Alkyl Halides

For reaction ...

Question

For reaction $3 B r O^{⊖} \to B r O_{3}^{⊖} + 2 B r^{⊖}$ , the value of rate constant at $80^{\circ} C$ in the rate for $- \frac{- d [B r O^{⊖}]}{d t}$ was found to be $0.054 L m o l^{- 1} s^{- 1}$ . The rate constant (k) for the reaction in terms of $\frac{d [B r O_{3}^{⊖}]}{d t}$ is :

0.018 L m o l^{- 1} s^{- 1}

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0.162 L m o l^{- 1} s^{- 1}

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0.036 L m o l^{- 1} s^{- 1}

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None

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Solution

The correct option is A $0.018 L m o l^{- 1} s^{- 1}$
For the given reaction
$\frac{1}{3} \frac{- d [B r O^{⊖}]}{d t} = \frac{d [B r O_{3}^{⊖}]}{d t} = \frac{1}{2} \frac{d [B r]}{d t}$
Since rate $\propto$ rate constant
$∴ \frac{d [B r O_{3}^{⊖}]}{d t} = \frac{1}{3} \times 0.054 = 0.018 L m o l^{- 1} s^{- 1}$

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Similar questions

For the reaction :

a A + b B \to c C + d D

Rate

= \frac{d x}{d t} = \frac{- 1}{a} \frac{d [A]}{d t} = \frac{- 1}{b} \frac{d [B]}{d t} = \frac{- 1}{c} \frac{d [C]}{d t} = \frac{- 1}{d} \frac{d [D]}{d t}

For reaction

3 B r O^{⊖} \to B r O_{3}^{⊖} + 2 B r^{⊖}

, the value of rate constant at

80^{\circ} C

in the rate for

- \frac{- d [B r O^{⊖}]}{d t}

was found to be

0.054 L m o l^{- 1} s^{- 1}

. The rate constant (k) for the reaction in terms of

\frac{d [B r O_{3}^{⊖}]}{d t}

is :

Q. For the reaction

3 B r O^{-} \to B r O_{3}^{-} + 2 {B r}^{-}

in an alkaline aqueous solution, the value of the second order (in

B r O^{-}

rate constant at

80^{o} C

in the rate law for

- \frac{Δ [B r O^{-}]}{Δ t}

was found to be

0.056 L {m o l}^{- 1} s^{- 1}

. What is the rate constant when the rate law is written for

(a) \frac{Δ [B r O_{3}^{-}]}{Δ t}, (b) \frac{Δ [{B r}^{-}]}{Δ t}

Q. For the reaction

{3 B r O}^{-} \to {B r O}_{3}^{-} + {2 B r}^{-}

in an alkaline aquesous solution, the value of the second order

(i n {B r O}^{-})

rate at

80

in the rate law for

- \frac{Δ [{B r O}^{-}]}{Δ t}

was found to be 0.056 mol

L^{- 1} s - 1

. What is the rate when the rate law is written for (a)

\frac{Δ {B r O}_{3}^{-}}{Δ t}

,(b)

\frac{Δ {B r}^{-}}{Δ t}

Q. In the reaction,

3 B r O^{-} ⟶ {B r O_{3}}^{-} + 2 {B r}^{-}

(aqueous alkaline medium at

80^{o} C

) the value of the rate constant in the rate law in terms of

- \frac{d}{d t} [B r O^{-}]

0.056

L

{m o l}^{- 1} s^{- 1}

. What will be the rate constant when the rate law is stated in terms of

\frac{d}{d t} [{B r O_{3}}^{-}]

Q. In the reaction of formation of sulphur trioxide by contact process;

2 S O_{2} + O_{2} ⇌ 2 S O_{3}

, the rate of reaction was measured as

\frac{d [O_{2}]}{d t} = - 2.5 \times 10^{- 4} m o l L^{- 1} s^{- 1}

. The rate of disappearance of

[S O_{2}]

m o l . L^{- 1} s^{- 1}

will be:

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For reaction 3BrO⊖→BrO⊖3+2Br⊖, the value of rate constant at 80∘C in the rate for −−d[BrO⊖]dt was found to be 0.054Lmol−1s−1. The rate constant (k) for the reaction in terms of d[BrO⊖3]dt is :

The correct option is A 0.018Lmol−1s−1For the given reaction 13−d[BrO⊖]dt=d[BrO⊖3]dt=12d[Br]dtSince rate ∝ rate constant∴d[BrO⊖3]dt=13×0.054=0.018Lmol−1s−1

For reaction $3 B r O^{⊖} \to B r O_{3}^{⊖} + 2 B r^{⊖}$ , the value of rate constant at $80^{\circ} C$ in the rate for $- \frac{- d [B r O^{⊖}]}{d t}$ was found to be $0.054 L m o l^{- 1} s^{- 1}$ . The rate constant (k) for the reaction in terms of $\frac{d [B r O_{3}^{⊖}]}{d t}$ is :