Find the residual enthalpy for a mole of ethane gas at a temperature of 300K and a pressure of 2 bar, that follows the following equation of state (a variation of the Redlich-Kwong EOS): p=VbRTTV(V+b)a Where: a=0.43PcR2Tc2.5,b=0.086PcRTc In order to solve this, you will need to find the Z value at the conditions for the residual (T= 300K and pressure of 2 bar) but because this is difficult with a cubic equation of state (to find volume) I will tell you that the volume at this temperature and pressure (in its gas phase and therefore the largest of the three volumes) is 0.013m3/mol. Convert your residual enthalpy value into J/mol, and comment whether it seems if residuals, and all this work, are important for this condition. (3 points) Now, use Lee-Kesler to figure out the residual enthalpy including the acentric factor for ethane at this exact condition and comment on similarities/differences (find acentric factor online online). (3 points)