Question

A mixture of 0.100 mol of NO, 0.050 mol of H2 and 0.10 mol of H2O is
placed in a 1.0-L vessel at 300 K. The following equilibrium is
established:

2NO(g) + 2H2(g) ⇆ N2(g) + 2H2O(g).

At equilibrium [NO] = 0.062M. Calculate the equilibrium concentrations
of H2, N2 and H2O and Keq.

Strategy:

Using the balanced chemical equation, write the equilibrum constant
expression, Kc, then substitute the given equilibrium concentrations
to it.

Accepted Answer

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