Chemical Engineering - Chemical Reaction Engineering - Discussion

Discussion Forum : Chemical Reaction Engineering - Section 10 (Q.No. 4)
With increase in temperature, the rate constant obeying Arhenious equation
decreases exponentially.
can either increase or decrease ; depends on the frequency factor.
Answer: Option
No answer description is available. Let's discuss.
12 comments Page 1 of 2.

Jaimin Pandya said:   5 years ago
k = k0 exp(-E/RT).
ln k =ln k0 + ln (-E/RT).

From the above equation, ln k is inversely prepositional to T.

So increase in T decrease in ln k.
Removing ln will exponentiation decrease in value of k.

Rahul Saini said:   8 years ago
According to Arrhenius equation k = k0 exp(-E/RT). So rate constant should increase with increase in temperature.

Aadhar Chauhan said:   4 years ago
Option A is the right answer because K (rate constant) is directly proportional to the temperature.

Ankit saini said:   3 years ago
Yes T increase, k will also increase.

If k increase, then Ea decrease.

Rishika said:   4 years ago
According to me as T increases, K should increase.

SURESH said:   6 years ago
The Rate constant increase with temperature.

Satya said:   4 years ago
It is absolutely increased with temperature.

Raj Musale said:   5 years ago
Answer is option A.

Ref: Scott Fogler.

Dipankar Kakati said:   8 years ago
The Rate constant increases.

Dev said:   7 years ago
Yes, it should increase.

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