(i) 1.26 × 1015 s
(ii) 2.52 × 1014 s
(iii) 2.52 × 1028 s
(iv) infinite
Correct Answer: (iv) infinite
Explanation: The time taken for the 100% completion of the reaction is infinite.
A first-order reaction is 50% completed in 1.26 × 1014 s. How much time would it take for 100% completion?
A first-order reaction is 50% completed in 1.26 × 1014 s. How much time would it take for 100% completion?