For a reaction A + 2 B → 2 C , the following data were obtained. Initial concentration [ A ] [ B ] Rate ( m o l l - 1 m i n - 1 ) i . 1.0 1.0 0.15 i i . 2.0 1.0 0.30 i i i . 3.0 1.0 0.45 i v . 1.0 2.0 0.15 v . 1.0 3.0 0.15 The rate law for this reaction

For A from is i and ii R 2 R 1 = c 2 c 1 n or 0.30 0.15 = 2 1 n So n = 1 For B, from i and iv R 2 R 1 = c 2 c 1 n or 0.15 0.15 = 2 1 n or ( 2 ) ° = ( 2 ) n So n = 0 R = k [ A ] [ B ] 0

Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsOrder and Molecularity of ReactionsEasy2 minPYQ_2020

ChemistryEasysingle choice

For a reaction $A + 2 B \to 2 C$ , the following data were obtained. Initial concentration

	$[A]$	$[B]$	Rate $(m o l l^{- 1} m i n^{- 1})$
$i .$	1.0	1.0	0.15
$i i .$	2.0	1.0	0.30
$i i i .$	3.0	1.0	0.45
$i v .$	1.0	2.0	0.15
$v .$	1.0	3.0	0.15

The rate law for this reaction

Options:

Answer:

Solution:

For A from is i and ii
$\frac{R_{2}}{R_{1}} = {(\frac{c_{2}}{c_{1}})}^{n}$
or $\frac{0.30}{0.15} = {(\frac{2}{1})}^{n}$
So n = 1
For B, from i and iv
$\frac{R_{2}}{R_{1}} = {(\frac{c_{2}}{c_{1}})}^{n}$
or $\frac{0.15}{0.15} = {(\frac{2}{1})}^{n}$
or $(2) ° = (2)^{n}$
So n = 0
$R = k [A] [B]^{0}$

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:Chemical KineticsSubtopic:Order and Molecularity of Reactions

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...