<Dl> <Dd> v = V / N (\ displaystyle v = V / N) </Dd> </Dl> <Dd> v = V / N (\ displaystyle v = V / N) </Dd> <P> is the volume of the container occupied by each particle (not the velocity of a particle), and k is the Boltzmann constant . It introduces two new parameters: a', a measure of the average attraction between particles, and b', the volume excluded from v by one particle . </P> <P> The equation can be also written in extensive, molar form: </P>

What does a and b stand for in van der waals equation