Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • For a chemical reaction , it is found that the rate of rea

For a chemical reaction \mathrm{A\rightarrow B}, it is found that the rate of reaciton doubles when the concentration of A is increased 4 times. What is the order of reaction?

Option: 1

\frac{1}{2}


Option: 2

\frac{3}{2}


Option: 3

1


Option: 4

0


Answers (1)

best_answer

Given,

\mathrm r_{1}=k[\mathrm{A}]^{n}
r_{2}=2 r_{1}=k[4 \mathrm{A}]^{n}
on dividing both 

\frac{2 r_{1}}{r_{1}} =\frac{k[4 A]^{n}}{k[A]^{n}}

\\ \Rightarrow 2=4^n \\ \Rightarrow(2)^{1}=(2)^{2 n} \\ \Rightarrow 2 n=1 \\ \Rightarrow n=\frac{1}{2} \\\\ \text {Order of reaction }=\frac{1}{2} \\\\ \Rightarrow \text{ Rate }= k[A]^{\frac{1}{2}}

Therefore, option(1) is correct

Posted by

shivangi.shekhar

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

BTech aspirant from north-east or UT? Apply for CSAB NEUT counselling 2025 today
anam-khan

JoSAA round 2 cut-off 2025 out; BTech closing ranks for top engineering courses at IITs
anam-khan

Goa Engineering Admission 2025: 1,415 eligible for BE seats; merit list on June 27

Latest Question