`CO(g)+Cl_2(g) hArr COCl(g)+Cl(g) K_(eq)=1.5xx10^(-39)`
If the rate constant , K, for the forward reaction is `1.4xx10^(-28) L mol^(-1) sec^(-1)` what is K ( in L `mol^(-1) sec^(-1)` ) for the backward reaction ?
A. `2.1xx10^(-67)`
B. `1.0xx10^(-11)`
C. `9.3xx10^(10)`
D. `7.1xx10^(27)`