Answer:
Option C
Explanation:
Key Idea: Arrhenius equation is given as:
logk2k1=Ea2.303R[1T1−1T2]
Given,
Activation energy of a reaction , EA =0
Rate constant , k1 =1.6 x 10-6 s-1
Temperature , T1 =280 K, T2 =300K
According to Arrhenius equation
logk21.6×10−6=02.303R[1280−1300]
logk21.6×10−6=0
k21.6×10−6=antilog0
k21.6×10−6=1
∴ k2=1.6×10−6s−1