Chemical Kinetics Question 39
Question: Which of the following is the fastest reaction [Pb. CET 2002]
Options:
A) $ C+\frac{1}{2}O_2\xrightarrow{250{}^\circ C}CO $
B) $ C+\frac{1}{2}O_2\xrightarrow{500{}^\circ C}CO $
C) $ C+\frac{1}{2}O_2\xrightarrow{750{}^\circ C}CO $
D) $ C+\frac{1}{2}O_2\xrightarrow{1000{}^\circ C}CO $
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Answer:
Correct Answer: D
Solution:
Combustion is an exothermic process, which is expected to be favoured by low temperature, but it is not true. Combustion include burning of particles which takes place at higher temperature. Thus at high temperature due to combustion of more particles, the reaction proceeds at higher rate.