Please find the question in the image below.The correct answer is (2) 80. Please explain the solution.

Please find the question in the image below.The correct answer is (2)

1.	Please find the question in the image below.The correct answer is (2) 80. Please explain the solution.
Answer» a(initial) =10 M ....> 80% changed into product \(a(t)=10(10*80/100)= 2M\) If a₀= 5 M , In the same time duration same percentage of initial concentration changes into products because in first order reaction is independent from initial concentration.