For the reaction H+ + BrO3 - + 3Br- - 5Br+2 + H2O which of the following relation correctly represents the consumption formation of reactants and products :

Question

For the reaction H+ + BrO3 - + 3Br- -> 5Br+2 + H2O which of the following relation correctly represents the consumption formation of reactants and products : (A) (d [Br2]/dt) =-(5/3) (d [Br-]/dt) (B) (d [Br2]/dt) =- (d [Br-]/dt) (C) (d [Br2]/dt) =(3/5) (d [Br-]/dt) (D) (d [Br2]/dt) =-(3/5) (d [Br-]/dt)

Tardigrade Admin · Accepted Answer

Rate of disappearance of reactant = Rate of appearance of product -(1/5)(d [Br-]/dt) =+(1/3) (d [Br2]/dt) or (d [Br2]/dt)=-(3/5)(d [Br-]/dt)

Q. For the reaction $H X^{+} + BrO X_{3} X^{-} + 3 Br X^{-} 5 Br X_{2}^{+} + H X_{2} O$ which of the following relation correctly represents the consumption & formation of reactants and products :

$\frac{d [ B r _{2} ]}{d t} = - \frac{5}{3} \frac{d [ B r ^{-} ]}{d t}$

$\frac{d [ B r _{2} ]}{d t} = - \frac{d [ B r ^{-} ]}{d t}$

$\frac{d [ B r _{2} ]}{d t} = \frac{3}{5} \frac{d [ B r ^{-} ]}{d t}$

$\frac{d [ B r _{2} ]}{d t} = - \frac{3}{5} \frac{d [ B r ^{-} ]}{d t}$

Rate of disappearance of reactant
= Rate of appearance of product
$- \frac{1}{5} \frac{d [ B r ^{-} ]}{d t} = + \frac{1}{3} \frac{d [ B r _{2} ]}{d t}$
or $\frac{d [ B r _{2} ]}{d t} = - \frac{3}{5} \frac{d [ B r ^{-} ]}{d t}$

Q. For the reaction HX++BrOX3​ X−+3BrX−​5BrX2+​+HX2​O which of the following relation correctly represents the consumption & formation of reactants and products :

dtd[Br2​]​=−35​dtd[Br−]​

dtd[Br2​]​=−dtd[Br−]​

dtd[Br2​]​=53​dtd[Br−]​

dtd[Br2​]​=−53​dtd[Br−]​