A gaseous mixture consisting of 0.75 kmol of hydrogen and 0.25 kmol of nitrogen occupies 0.085 m3 at 25degreeC Determine the pressure in bar using The ideal gas law Kay's rule together with the generalized compressibility chart The Van der Walls equation together with mixtures values for the constants a and b The additive pressure/Amagot's law together with the generalized compressibility chart.