Please answer and explain

Consider 1 mole of oxygen gas for which the van der Waal's equation of state applies. Let a=138.2 kPa LA2 molA-Z and b= 0.03186 L molA-l. o If this gas occupies a volume of 0.0480 L at 273 K, what is the compression factor, Z? 0 Given this, are attractive or repulsive forces dominating this gas, or is it behaving ideally? Briey explain your reasoning. 0 We have discussed the differences between the ideal gas equation of state and the van der Waal's equation of state. What are the fundamental differences between the two? When would you expect the two equations to return similar answers? Under what circumstances does the ideal gas approximation break down