(a) A reaction is second order in A and first order in B.
(i) Write the differential rate equation.
(ii) How is the rate affected on increasing the concentration of A three times?
(iii) How is the rate affected when the concentrations of both A and B are doubled?
(b) A first order reaction takes 40 minutes for 30% decomposition. Calculate t1/2 for this reaction (Given log 1.428 = 0.1548)
(a) (i) Differential rate equation :
(ii) When concentration of A is increased to three times, the rate of reaction becomes 9 times
(b) Given : Time, t = 40 minutes, t1/2 =?
Let a = 100, = 30% of 100 =30
Using the formula :