Consider the first order reaction $\mathrm{R} \rightarrow \mathrm{P}$. The fraction of molecules decomposed in the given first order reaction can be expressed as
Select the correct option:
A
(1) $1-e^{k_1 t}$
B
$1-e^{k_1 t}$
C
$1+e^{-k_1 t}$
D
$1-e^{-k_1 t}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
Solution
For I order reactions.
$\begin{aligned} & a-x=a e^{-K_1 t} \\ & \frac{x}{a}=1-e^{-K_1 t}\end{aligned}$
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