Question

The virial equation for 1 mole of a real gas is written as:
$PV=RT$$[1+\frac{A}{V}+\frac{B}{V^2}+\frac{C}{V^3}+.......\text{to higher power of n}]$

where A, B, and C are written as virial coefficients. If the Van der Waal's equation is written in virial form then what will be the value of B?

• A. $a-\frac{b}{RT}$
• B. $b^3$
• C. $b-\frac{a}{RT}$
• D. $b^2$

Answer 1

The correct option is C $b-\frac{a}{RT}$

• A virial equation is an equation of state of gases that has additional terms beyond that for an ideal gas, which account for the interactions between the molecules.
  
• If the Van der Waal's equation is written in virial form then the value of $B=b-\frac{a}{RT}$