Chemical Kinetics Question 125
Question: In presence of $ HCl $ , sucrose gets hydrolysed into glucose and fructose. The concentration of sucrose was found to reduce form 0.4 M to 0.2 M in 1 hour and 0.1 M in 2 hours. The order of the reaction is
Options:
A) Zero
B) One
C) Two
D) None of these
Show Answer
Answer:
Correct Answer: B
Solution:
Using the formula $k=2.303tlog\frac{[A]_o}{[A]_t}$
In one hour
$k=\frac{2.303}{1}log\frac{0.4}{0.2}=0.6933hour^{−1}$
In two hour
$k=\frac{2.303}{2}log\frac{0.4}{0.1}k=0.6933hour^{−1}$
Since rate constant K is same, we know that the reaction is of order 1.
