Q$1$ In a first order reaction of the type $A(g)2B(g),$ the initial and final pressures are $p_g$ and prespectively. The rate constant can be expressed by

a$)K=\frac{1}{t}ln\frac{po}{2po-p}$

b$)K=\frac{1}{t}ln\frac{po}{pt-po}$

c$)K=\frac{1}{t}ln\frac{po}{p}$