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How to find a,b for van der Waals EoS (pure) van der Waals equation of state is p=vbRTv2a three equations for a,b, and vc in

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How to find a,b for van der Waals EoS (pure) van der Waals equation of state is p=vbRTv2a three equations for a,b, and vc in terms of the critical pressure ire a=6427pcR2Tc2b=8pcRTc Q1.1 Find parameter a for ethylene [c2H4] In van der Waals equat[on-10 Points Evaluate a and enter value below Units of a [=] atmini ft/ lbmoll /2 Q1.2 Find parameter b 10 Points Evaluate a and enter value below Units of [=]ft3/ lbmol

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