Chemical Engineering - Chemical Reaction Engineering - Discussion
Discussion Forum : Chemical Reaction Engineering - Section 5 (Q.No. 14)
14.
Consider the 'n' th order irreversible liquid phase reaction A 
B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot ?
B. Which one of the following plots involving half life of the reaction (t1/2) and the initial reactant concentration (CA0) gives a straight line plot ?Discussion:
6 comments Page 1 of 1.
Raghvendra Tiwari said:
1 month ago
Yes, Option D is right.
Kier said:
7 months ago
I think option D is right.
THOSIN said:
12 months ago
Assuming a zero-order irreversible reaction,
r = -dc/dt = kc^0 = k, -dc = kdt, -c = kt + p, at t = 0, p = -c0.
Hence, -c = kt - c0, c0 - c = kt, at t = t1/2, c = 1/2c0.
Hence, c0 - 1/2c0 = kt1/2, 1/2c0 = kt1/2 and c0 = 2kt1/2,
Hence a plot of c0 or cA0 against t1/2 gives a straight line with slope = 2k.
r = -dc/dt = kc^0 = k, -dc = kdt, -c = kt + p, at t = 0, p = -c0.
Hence, -c = kt - c0, c0 - c = kt, at t = t1/2, c = 1/2c0.
Hence, c0 - 1/2c0 = kt1/2, 1/2c0 = kt1/2 and c0 = 2kt1/2,
Hence a plot of c0 or cA0 against t1/2 gives a straight line with slope = 2k.
Vivek said:
6 years ago
Yes, D is correct option.
Remo said:
7 years ago
Yes, the correct Answer is D.
Ahmed ul Bari said:
8 years ago
Option D is right.
For reference, you can look "elements of chemical reaction engineering" (foggler) edition.
For reference, you can look "elements of chemical reaction engineering" (foggler) edition.
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