Question:
Rate law for the reaction, $A+2B$ $\rightarrow$ $C$ is found to be Rrte $=k\left[A\right]\left[B\right]$
Concentration of reactant $??'$ is doubled, keeping the concentration o f $???
Rate law for the reaction, $A+2B$ $\rightarrow$ $C$ is found to be Rrte $=k\left[A\right]\left[B\right]$
Concentration of reactant $??'$ is doubled, keeping the concentration o f $???
Updated On: Jul 6, 2022
- the same
- doubled
- quadrupled
- halved
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The Correct Option is A
Solution and Explanation
Rate constant of a reaction does not depend
upon concentrations of the reactants. Thus, it will remain same.
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Notes on Rate of a Chemical Reaction
Concepts Used:
Rate of a Chemical Reaction
The rate of a chemical reaction is defined as the change in concentration of any one of the reactants or products per unit time.
Consider the reaction A → B,
Rate of the reaction is given by,
Rate = −d[A]/ dt=+d[B]/ dt
Where, [A] → concentration of reactant A
[B] → concentration of product B
(-) A negative sign indicates a decrease in the concentration of A with time.
(+) A positive sign indicates an increase in the concentration of B with time.
Factors Determining the Rate of a Reaction:
There are certain factors that determine the rate of a reaction:
- Temperature
- Catalyst
- Reactant Concentration
- Chemical nature of Reactant
- Reactant Subdivision rate