1. The problem statement, all variables and given/known data Hello there, I was given a tasks to find Cp and Cv of nitrogen and carbon dioxide in real gas situation. 2. Relevant equations From what i could find, the suitable equation would be: Cv = Cv° - (2(∂B/∂T) + T(∂²B/∂T²)P 3. The attempt at a solution The problem is I couldn't find a way to solve the '(2(∂B/∂T) + T(∂²B/∂T²)P' part of equation. Any guidance will be highly appreciated. Thanks.