Chemical Kinetics Question 340
Question: The half life period for catalytic decomposition of $ AB_3 $ at 50 mm Hg is 4 hrs and at 100 mm Hg it is 2 hrs. The order of reaction is
Options:
A) 1
B) 3
C) 2
D) 0
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ {t_{1/2}}\propto \frac{1}{{{(p)}^{n-1}}} $ where n is the order of reaction $ \frac{2}{4}={{( \frac{50}{100} )}^{n-1}},or,\frac{1}{2}={{( \frac{1}{2} )}^{n-1}} $
$ n-1=1;n=2 $
