Question

can anyone help me to do this qn calculate the time req. for completion of the reaction of 90 percent of 1st order reaction​

Answer 1

Time required for completion of first order reaction

For the first order reaction, time required for 99% completion. Hence, time required for 99% completion is twice for the time required for the completion of 90% reaction. ... A first order reaction has a rate constant 1.15 x 10–3 s–1.