Initial conc. \(1\) \(3\) \(0\)
at equilibrium \(1-0.81\) \(3-2.43\) \(1.62\)
\(0.19\) \(0.57\)
No. of moles of \({N_2} = \frac{{28}}{{28}} = 1\) \(mole\)
No. of moles of \({H_2} = \frac{6}{2} = 3\) \(mole\)
No. of moles of \(N{H_3} = \frac{{27.54}}{{17}} = 1.62\) \(mole\)
\({K_c} = \frac{{{{[N{H_3}]}^2}}}{{[{N_2}]\,\,{{[{H_2}]}^3}}} = \frac{{{{[1.62]}^2}}}{{[0.19]\,\,{{[0.57]}^3}}}\)\(=75\)