Chemical Kinetics Question 313
Question: Consider the following statements:
I. Increase in concentration of reactant increases the rate of a zero order reaction. II. Rate constant k is equal to collision frequency A if $ E_{a}=0. $ III. Rate constant k is equal to collision frequency A if $ E_{a}=\infty . $ IV. In k Vs T is a straight line. V. In k Vs 1/T is a straight line. Correct statements are
Options:
A) I and IV
B) II and V
C) III and IV
D) II and III
Show Answer
Answer:
Correct Answer: B
Solution:
[b] According to Arrhenius equation, $ k=A{e^{-E_{a}/RT}} $
$ \therefore $ when $ E_{a}=0,k=A $ Also In k vs 1/T is a straight line with slope $ =-E_{a}/R. $
$ \therefore $ Statements (ii) and (v) are correct.
