Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • A solid reactant is in the shape of a cube having side equal to 3 cm. The observed rate of reaction is <img alt="\mathrm{R_1}" src="https://entrancecorner.oncodecogs.com/gif.latex?%5Cmathrm%7B

A solid reactant is in the shape of a cube having side equal to 3 cm. The observed rate of reaction is \mathrm{R_1}.

If the cube is divided into smaller cubes having size 1 cm then the observed rate of reaction is \mathrm{R_2}.

If the cube is divided into smaller cubes having size 1.5 cm, then the observed rate of reaction is \mathrm{R_3}.

Which of the following correctly represents the relation between \mathrm{R_1, R_2\ and\ R_3}?

Option: 1

\mathrm{R_1 > R_2 > R_3}


Option: 2

\mathrm{R_2 > R_1 > R_3}


Option: 3

\mathrm{R_2 > R_3 > R_1}


Option: 4

\mathrm{R_1 = R_2 = R_3}


Answers (1)

In general, greater the surface area, greater is the rate of reaction 

The total surface area will be greatest for the second case in which smaller cubes have size 1 cm followed by the third case in which the smaller cubes have size 1.5 cm

Hence, the correct order of rate of reactions is \mathrm{R_2 > R_3 > R_1}

Thus, the correct answer is Option (3)

Posted by

Sumit Saini

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