Year: 2017
Topic: Chemical Kinetics
Time :
1.
A first order reaction has a specific reaction rate of 10
-2
s
-1
. How much time will it take for 20 g of the reactant to reduce to 5 g ?
(1). 693.0 second
(2). 238.6 second
(3). 138.6 second
(4). 346.5 second