The energy of activation of a chemical reaction ?
Correct answer: B. Is the minimum energy which the molecules must have before the reaction can take place
- A. Is same as heat of reaction at constant pressure
- B. Is the minimum energy which the molecules must have before the reaction can take place
- C. Varies as fifth power of the temperature
- D. Both B. and C.
Explanation
Activation energy is the energy barrier that reacting molecules must overcome for reaction to occur. It is not the same as heat of reaction, and it does not vary as the fifth power of temperature.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Chemical Reaction Engineering
395 free Chemical Reaction Engineering MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Reaction Engineering questions
For identical flow rate, feed composition and for elementary first order reactions, 'N' equal sized mixed reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for constant density systems. This is true, when the value of 'N' is ___________________?
The dispersion number of perfect mixed flow is__________________?
In autocatalytic reactions ?
With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be__________________?
Space time in flow reactor is____________________?
The rate of reaction does not decrease appreciably as the reaction proceeds in case of ______________ reactions?