In chemistry a hypothetical substance whose molecules occupy negligible space and have no interactions is called a?
Real gas when "p" is in kPa, "v" is in formula_34, "T" is in K and "R" = 8.314formula_35 The BWR equation, sometimes referred to as the BWRS equation, where "d" is the molar density and where "a", "b", "c", "A", "B", "C", "α", and "γ" are empirical constants. Note that the "γ" constant is a derivative of constant "α" and therefore almost identical to 1. The expansion work of the real gas is different than that of the ideal gas by the quantity formula_37. Real gas Real gases are non-hypothetical gases whose molecules occupy space and have interactions; consequently, they adhere
Stacking (chemistry) Stacking (chemistry) In chemistry, pi stacking (also called π–π stacking) refers to attractive, noncovalent interactions between aromatic rings, since they contain pi bonds. These interactions are important in nucleobase stacking within DNA and RNA molecules, protein folding, template-directed synthesis, materials science, and molecular recognition, although new research suggests that pi stacking may not be operative in some of these applications. Despite intense experimental and theoretical interest, there is no unified description of the factors that contribute to pi stacking interactions. The benzene dimer is the prototypical system for the study of pi stacking, and is experimentally bound by 8–12 kJ/mol