At moderately low pressures (or) intermediate pressures, a graph is plotted between compressibility factor(Z) on y-axis Vs 1V on x-axis at constant temperature. Correct statement regarding the graph is

At moderately low pressures (or) intermediate pressures, the factor ‘b’ of Vanderwaals equation can be neglected. ‘b’ is covolume (or) volume occupied by molecules which becomes significant only at high pressures.Vanderwaals equation for one mole can be written asP+aV2V=RTPV+aV=RTPV=RT−aVPVRT=1−aRTVZy=1c−aRTm×1Vx;A straight line with negative slope and positive y-intercept;