The reaction Ak→ Products, is zero order while the reaction Bk→ products, is 1st order. for what initial concentration of A the half lives of the two reactions are equal ?
For a first-order reaction, the half-life is given by:
t1/2=ln2k
While for a zero order reaction,
t1/2=a2k
So, half life of two will be equal when a=2 ln2= initial concentration of A