Critical constants Tc , pc and Vc

1.	Critical constants Tc , pc and Vc
Answer» Critical Temperature, T_c : Temperature above which a gas cannot be liquefied howsoever high the pressure may be. It the maximum temperature at which a substance can exist as liquid. \(T_c=\frac{8a}{27\,Rb}\) Critical Pressure, P_cMinimum pressure required to liquefy the gas at its critical c temperature. \(P_c= \frac{a}{27\,b^2}\) Critical Volume,V_cVolume occupied by one mole of a gas at its critical temperature and c critical pressure. V_c = 3b

Answer»

Critical Temperature, T_c : Temperature above which a gas cannot be liquefied howsoever high the pressure may be.

It the maximum temperature at which a substance can exist as liquid.

\(T_c=\frac{8a}{27\,Rb}\)

Critical Pressure, P_cMinimum pressure required to liquefy the gas at its critical c temperature.

\(P_c= \frac{a}{27\,b^2}\)

Critical Volume,V_cVolume occupied by one mole of a gas at its critical temperature and c critical pressure.

V_c = 3b

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