An important parameter of a photochemical reaction is the quantum effeiciency or quantum yield `(phi)` which is defined as
`phi=("moles of the substance reaction")/("moles of photons absorbed")`
Absorption of UV radiation decompose acetone according to the reaction
`(CH_(3))_(2)COoverset(hv)(rarr)C_(2)H_(6)+CO`
If quantum yield in `0.8` then rate of formation of `C_(2)H_(6)(mol//s)` is :

Options

A. `8xx10^(-9)`
B. `1.6xx10^(-9)`
C. `16xx10^(-9)`
D. `4xx10^(-9)`

Answer

A