For a sequential reaction.
`NH_(3) rightarrow N_(2) + H_(2)`
`H_(2) + O_(2) rightarrow H_(2)O`
What will be the amount of water which will be obtained if 5 moles of `NH_(3)` is mixed with 3 moles of `O_(2)` and % yield of `1^(st)` and `2^(nd)` reaction is 50% and 80% respectively ?
A. 3 moles
B. 2.5 mole
C. 2 mole
D. 2.4 mole
