Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • Choose the correct expression regarding average rate of reaction () and instantaneous

Choose the correct expression regarding average rate of reaction (\mathrm{r_{avg}}) and instantaneous rate of reaction (\mathrm{r_{inst}}) :

Option: 1

\mathrm{r_{\text {inst. }}=\lim _{\Delta t \rightarrow 0}\left(r_{\text {avg. }}\right) }


Option: 2

\mathrm{r_{\text {avg. }}=\lim _{\Delta t \rightarrow 0}\left(r_{\text {inst. }}\right)\\ }


Option: 3

\mathrm{r_{\text {avg. }}=\lim _{\Delta C \rightarrow 0}\left(r_{\text {inst. }}\right)}


Option: 4

\mathrm{r_{\text {inst. }}=\lim _{\Delta C \rightarrow 0}\left(r_{\text {avg. }}\right)}


Answers (1)

best_answer

Average rate of reaction:
For a reaction,
\mathrm{A \rightarrow B}
\mathrm{\text { Average rate }=\frac{\text { Total change in concentration }}{\text { Total time taken }}}
Average rate \mathrm{=\frac{\Delta C}{\Delta t}}
Instantaneous rate of a reaction:
Rate of reaction at a particular instant is called Instantaneous rate of a reaction. For a reaction
\mathrm{A \rightarrow B}
\mathrm{r_{\text {inst. }}=\frac{d C}{d t}}
\mathrm{r_{\text {inst. }}=\lim _{\Delta t \rightarrow 0}\left(\frac{\Delta C}{\Delta t}\right)=\frac{d C}{d t}}
So,
\mathrm{r_{\text {inst. }}=\lim _{\Delta t \rightarrow 0}\left(r_{\text {avg. }}\right)}

Posted by

Pankaj

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE 2026: IIT admissions show major shift toward AI, data science, away from core engineering courses
anam-khan

JEE Main 2026: NIT Delhi cut-offs for BTech courses show ever-increasing demands for AI, computer skills
anam-khan

597 Eklavya school students clear JEE, NEET exams in 2024-25; Gujarat, MP lead

Latest Question