The time required for 10% completion of a first order reaction

cbse
chemical-kinetics

#1

The time required for 10% completion of a first order reaction at 298 K is equal to that required for its 25% completion at 308 K. If the value of A is 4 x ${{10}^{10}}$ ${{s}^{-1}}$. Calculate k at 318 K and $E _{ a }$.


#2