The decomposition of `NH_(3)` on Pt surface is a zero order reaction. If the value of rate constant is `2 xx 10^(-4)" mole liter"^(-1)" sec"^(-1)` . The rate of appearance of `N_(2)` and `H_(2)` are respectively
`{:(" N"_(2)," H"_(2)),("(1) "1xx10^(-4)" mol l"^(-1)"sec"^(-1),3xx10^(-4)" mol"^(-1)"sec"^(-1)),("(2) "3xx10^(-4)" mol l"^(-1)"sec"^(-1),1xx10^(-4)" mol"^(-1)"sec"^(-1)),("(3) "2xx10^(-4)" mol l"^(-1)"sec"^(-1),6xx10^(-4)" mol"^(-1)"sec"^(-1)),("(4) "3xx10^(-4)" mol l"^(-1)"sec"^(-1),3xx10^(-4)" mol"^(-1)"sec"^(-1)):}`

Answer

3