Chemical Kinetics Question 196

Question: The reaction AB follows first order kinetics. The time taken for 0.8 mole of A to produce 0.6 mole of B is 1 hour. What is the time taken for conversion of 0.9 mole of A to produce 0.675 mole of B [CBSE PMT 2003]

Options:

A) 2 hours

B) 1 hour

C) 0.5 hour

D) 0.25 hour

Show Answer

Answer:

Correct Answer: B

Solution:

k=2.303tlog0.80.6=2.303log43

t=2.303klog0.90.675=2.303klog43 ; t=1 hour.



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