Chemical Engineering - Chemical Reaction Engineering - Discussion

Discussion Forum : Chemical Reaction Engineering - Section 8 (Q.No. 27)
27.
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be
0.5τ
τ/0.693
0.693τ
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
3 comments Page 1 of 1.

Albaz said:   4 years ago
D is the correct answer.

Dev said:   9 years ago
Good @Sangram.

The answer is D.

Sangram said:   9 years ago
Ans is D becoz for cstr c = c' * e^t/w.
c'/2 = c' * e^t/w;
t = 0.693w.

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