Question

In the reaction `A+2B hArr 2C,` if 2 moles of A, 3.0 moles of B and 2.0 moles of C are placed in a 2.0 I flask and the equilibrium ocncentration of C is 0.5 mole /I. The equlibrium constant `(K_(c))` for the reaction is
A. `0.073`
B. `0.147`
C. `0.05`
D. `0.026`

Answer 1

Correct Answer - C
`A+2BhArr2C`
`{:("Initial conc.",2,3,2),("at eqm.",2.5,4,1),("Molar",(2.5)/(2)=1.25,(4)/(2)=2,(1)/(2)=0.5):}`
`K=([0.5]^(2))/([1.25]xx[2]^(2))=0.05`