RTa 1. The Van der Walls ideal gas equation of state is given by: p = t b-u (a) Create an anonymous function p(v, T) and compute the pressure p(v= [0.005, 0.01, 0.05], T=400) V2 (b) Use symbolic computation to obtain the isothermal expansion work, W pdv for M2 gas when the volume increases from u = 0.00375 m3/kg to v = 0.006 m3/kgat, T = 175K, given that a = 0.175 m.kPa/kg, b = 0.00138 m kg and R = 0.286kJ/kmol. K (c) Use 'ezplot, to plot p (v,T) against v for temperatures T = 100K, 500K and 1000K on the same graph showing axes labels and a title. (hints: keep v a symbolic vari- able and use symbolic function calls p (v, 100), p (v,500) and p (v, 1000) in three separate eaplot commands, respectively, uwith 'hold on)