A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?
Correct answer: C. Either of the arrangement A. or B. will give the same yield
- A. Large reactor followed by smaller one
- B. Smaller reactor followed by larger one
- C. Either of the arrangement A. or B. will give the same yield
- D. Data insufficient, can't be predicted
Explanation
For a first-order reaction in CSTRs, the overall conversion depends on the sum of the reactor volumes divided by the flow rate, not on their order. Interchanging the two unequal reactors therefore gives the same yield.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
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.
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 reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a_________________?
For a vapour phase catalytic reaction (A + B → P) which follows the Ridel mechanism and the reaction step is rate controlling, the rate of reaction is given by (reaction rate is irreversible, product also absorbs) ?
Which of the following will favour the reverse reaction in a chemical equilibrium reaction ?
The rate of a chemical reaction is almost doubled for every 10°C rise in temperature. The rate will increase ______________ times, if the temperature rises from 10 to 100°C?
When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is__________________?
A reaction in which one of the products of reaction acts as a catalyst is called a/an ______________ reaction?