Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Match the statements given in column I and Column II. Column I Column II (i)Catalyst alters the rate of reaction (a) Cannot be fraction or zero

Match the statements given in column I and Column II.

Column I Column II
(i) Catalyst alters the rate of reaction (a) Cannot be fraction or zero
(ii) Molecularity (b) Proper orientation is not there always
(iii) Second half life of first order reaction (c) by lowering the activation energy
(iv) e^{-E_{a}/RT} (d) is same as the first
(v) Energetically favourable reactions are sometimes slow (e) total probability is one
(vi) Area under the Maxwell- Boltzmann curve is constant (f) refers to the fraction of molecules with energy equal to or greater than activation energy.

 

Answers (1)

(i) → (c) (ii) → (a) (iii) → (d) (iv) → (f) (v) → (b) (vi) → (e)

(i) Catalyst can change the rate of reaction by decreasing the  (E_{a}) or activation energy.
(ii) Molecularity cannot be fraction or zero. No reaction is possible if molecularity is zero.
(iii) The first and second half-life of first order reaction are same since half-life is temperature dependent. ‘
(iv) In Arrhenius equation, e-\frac{E_{a}}{RT}  denotes the fraction of molecules with K.E equal to or greater than activation energy.
(v) The activation energy and proper orientation of the molecules together determine the criteria for effective collision in collision theory.
(vi) Since total probability of molecules must be equal to one at all times, area under the Maxwell-Boltzmann curve remains constant.

Posted by

infoexpert23

View full answer

Similar Questions

Latest Question