Скачать или смотреть Thermodynamics -Molecular Collision: particle collisional frequency/density, Compressibility Factor

Physical Chemistry (3rd Edition) - Keith J. Laidler and John H. Meiser
Chapter 1: The Nature of Physical Chemistry and the Kinetic Theory of Gases

Graham's Law, Molecular Collisions, and Kinetic Theory

Q1: The collision diameter of N2 is 3.74 x 10^{-10} m at 298.15 K and 101.325 kPa. Its average speed is 474.6 m/s. Calculate the mean free path, the average number of collisions, Z1 experience by one molecule in unit time, and the average number of collisions, Z11 per unit volume per unit time for N2.

Q2: A particular mass of N2 occupies a volume of 1.00 dm^3 at -50 °C and 800 bar. Determine the volume of the same mass of N2 at 100 °C and 200 bar using the compressibility factor for N2: at -50 °C and 800 bar Z = 1.95; at 100 °C and 200 bar Z = 1.10. Compare this value to that obtained from the ideal gas law. What is the error that one makes if he/she treats this gas as an ideal gas?