Question

e) Determine an ideal gas - for a van der Waals bas and (26) +- 7 ( 36 ) -P (PP) y = ne C ) -794) - ART pamet 699,- Ov-p (9) mai V-wo
this is the answer from another problem. I had to determine (dE/dV)T for an ideal gas and a van der waal gas. the question I need help with is Explain the answer in terms of asshmptions that define VDW's and ideal gases.

Answer 1

Change in internal energy with respect to volume at constant temperature is known as first thermodynamic equation of state. Dimensionally it was seen that it's dimension is the dimension of pressure so it is also called as internal pressure. Ideal gas follow ideal gas equation but ideality is rare. In many cases gases does not follow the ideal gas equation which is known as real gas and for that some pressure and volume correction has done in ideal gas equation which is known as Vander waal equation.

Answee fn Phternal eo Volume at contant tempesatuse A known Cgy epuat te Hherme as elE= Tds -poly in e we mmoyuell relaten e knous flat - au Casfor tdeod gas. Felealar ase tore ohich felleu ideal JAj guapion pV= nRT F RT w. Tat consta 4E alur in egn ue Cas P m ideal jas epn nRT iclea as Real ga e vn) RT ren gas Case for PMRT w.t.rat con dant Vwe get puing value valse for real gas egh we (v-nb nh an for real gas 12