The reaction,
`2A(g) + B(g)hArr3C(g) + D(g)`
is begun with the concentration of A and B both at an intial value of `1.00` M. When equilibrium is reached, the concentration of D is measured and found to be `0.25` M. The value for the equilibrium constant for this reaction is given by the expression:

Options

A. `[(0.75)^3(0.25)] div [(1.00)^2(1.00)]`
B. `[(0.75)^3(0.25)] div [(0.50)^2(0.75)]`
C. `[(0.75)^3(0.25)]div[(0.50)^2(0.25)]`
D. `[(0.75)^3(0.25)] div [(0.75)^2(0.25)]`

Answer

B