If instantaneous rate of reaction is given as the reaction is represented as,

If instantaneous rate of reaction is given as the reaction is represented as,
  1. $\mathrm{A}+\mathrm{B} \longrightarrow \mathrm{C}+\mathrm{D}$
  2. $\quad \mathrm{aA}+\mathrm{B} \longrightarrow \mathrm{cC}+\mathrm{dD}$
  3. $\mathrm{aA}+\mathrm{bB} \rightarrow \mathrm{cC}+\mathrm{dD}$
  4. $\mathrm{aA}+\mathrm{bB} \longrightarrow \mathrm{C}+\mathrm{D}$

Solution

Instantaneous rate $=-\frac{1}{\mathrm{a}} \frac{\mathrm{~d}[\mathrm{~A}]}{\mathrm{dt}}=-\frac{1}{\mathrm{~b}} \frac{\mathrm{~d}[\mathrm{~B}]}{\mathrm{dt}}=\frac{1 \mathrm{~d}[\mathrm{C}]}{\mathrm{c}} \frac{1}{\mathrm{dt}}=\frac{\mathrm{d}[\mathrm{D}]}{\mathrm{d}} \frac{\mathrm{dt}}{}$ $\therefore \quad$ The reaction can be represented as $\mathrm{aA}+\mathrm{bB} \rightarrow \mathrm{cC}+\mathrm{dD}$

Asked in: MHT CET 2024 (11 May Shift 2)

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