Question

Q.45. Derive relationship between Vander Wall's constant
and critical constant. Deduce the expressions for a, b and R and
and 'b' are kept constant.
terms of critical constants of the gas.
​

Answer 1

Answer:

Expression of Critical Constants in Terms of Van der Waals Constants: Again with increase of temperature the minimum and maximum points come close to each other and at the critical point (C) both maximum and minimum coalesce. The slope and curvature both becomes zero at this point. RTC/(VC - b)2 = 2a/VC3.