For the reaction `4NH_(3) + 5O_(2) to 4NO + 6H_(2) O`, if the rate of disappearance of `NH_(3)` is `3.6 xx 10^(-3)` mol `L^(-1) s^(-1)`, what is the rate of formation of `H_(2) O`

Options

A. zero `mol L^(-1)S^(-1)`
B. First `mol L^(-1) S^(-1)`
C. first `S^(-1)`
D. Zero `L mol ^(-1)S^(-1)`

Answer

A

Explanation

For a zero order reaction rate `=K =(dx)/(dt)`
unit of `k= mol L^(-1)S^(-1)`