If instantaneous rate of reaction is given as − a 1 d t d [ A ] = − b 1 d t d [ B ] = c 1 d t d [ C ] = d 1 d t d [ D ] , the reaction is represented as,

Question

If instantaneous rate of reaction is given as − a 1 ​ d t d [ A ] ​ = − b 1 ​ d t d [ B ] ​ = c 1 ​ d t d [ C ] ​ = d 1 ​ d t d [ D ] ​ , the reaction is represented as,

TestHub · Accepted Answer

The rate of reaction is given by the rate of disappearance of reactants divided by their stoichiometric coefficients, which is equal to the rate of appearance of products divided by their stoichiometric coefficients.

Given the rate expression:
$- \frac{1}{a} \frac{d [ A ]}{d t} = - \frac{1}{b} \frac{d [ B ]}{d t} = \frac{1}{c} \frac{d [ C ]}{d t} = \frac{1}{d} \frac{d [ D ]}{d t}$

The negative sign indicates that $A$ and $B$ are reactants, while the positive sign indicates that $C$ and $D$ are products. The denominators $a, b, c, d$ represent the stoichiometric coefficients of $A, B, C, D$ respectively.

Thus, the balanced chemical equation is:
$a A + b B \to c C + d D$

Answer: $aA + bB \to cC + dD$

Chemistry - Chemical Kinetics Question with Solution | TestHub

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