Chemical Kinetics Question 98
Question: The rates of a certain reaction (dc/dt) at different times are as follows
| Time | Rate(mole litre-1 sec -1 ) |
|---|---|
| 0 | $ 2.8\times {10^{-2}}$ |
| 10 | $ 2.78\times {10^{-2}} $ |
| 20 | $ 2.81\times {10^{-2}} $ |
| 30 | $ 2.79\times {10^{-2}} $ |
The reaction is [NCERT 1978]
Options:
A) Zero order
B) First order
C) Second order
D) Third order
Show Answer
Answer:
Correct Answer: A
Solution:
The concentration of reactant does not change with time for zero order reaction (unit of K suggests zero order) since reactant is in excess.
