Chemical EquilibriumHard

Question

The equilibrium N2 (g) + O2 (g) ⇋ 2NO (g) is estabilished in a reaction vessel of 2.5 L capacity. The amounts of N2 and O2 taken at the start were respectively 2 moles and 4 moles. Half a mole of nitrogen has been used up at equilibrium. The molar concentration of nitric oxide is :

Options

A.0.2
B.0.4
C.0.6
D.0.1

Solution

             N2       +       O2   ⇋    2NO
Initial    2 moles      4moles
At Eq.  2 -          4 -       2 × = 1 mol
Molar concentration of NO at equilibrium = = 0.4

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