MHT CET · Chemistry · Chemical Kinetics
Rate law for the reaction \(\mathrm{aA}+\mathrm{bB} \rightarrow \mathrm{cC}+\mathrm{dD}\) is \(\mathrm{r}=\mathrm{k}[\mathrm{A}][\mathrm{B}]\), the rate of reaction doubles if
- A Concentration of both \(A\) and \(B\) are doubled.
- B Concentration of \(A\) is doubled and concentration of \(B\) is kept constant.
- C Concentration of \(B\) is doubled and concentration of \(A\) is halved.
- D Concentration of A is kept constant and concentration of B is halved.
Answer & Solution
Correct Answer
(B) Concentration of \(A\) is doubled and concentration of \(B\) is kept constant.
Step-by-step Solution
Detailed explanation
Initial rate: \(r_1 = k[\mathrm{A}][\mathrm{B}]\) If \([\mathrm{A}]\) is doubled and \([\mathrm{B}]\) is kept constant:
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