van der waals constant in terms of critical constant

Relationship between Critical Constant and Van der Waal's Constants - The relationship between critical constants of the gases and their Van der Waal constants is as follows: (i) ..

The relationship between critical constants of the gases and their Van der Waal constants is as follows: (i) V c = 3b (ii) P c = a/27b 2 (iii) T c = 8a/27Rb (iv) The critical compressibility factor Z..

In order to understand the origin of these forces, consider two helium atoms very close to each other. The ground state electronic configuration of helium is 1s 2 .Each helium atom is uncharged because its electron cloud is symmetrically distributed around the nucleus. In the most favoured arrang..

The value of the equilibrium constant of a reaction is the same, at constant 'T' and 'P'. However, if either temperature 'T' or pressure 'P' or both are changed, the value of the equilibrium constant may also change. For example, the value of K p (equilibrium co..

Some main characteristics of equilibrium constant are described below: The value of the equilibrium constant of a reaction is the same, at constant 'T' and 'P'. However, if either temperature 'T' or pressure 'P' or both are changed, the value of the equilibrium co..

> The above results can be summarized as follows: When a reaction proceeds, the number of moles converting from reactants to the products may or may not change. The change in the number of moles (except for pure liquids, solids and solvent in excess) converting from reactants to the products is cal..

Rules for Writing Equilibrium Constant Expressions - Expression for the equilibrium constant of a reaction is written in the form of a ratio. The numerator consists of the molar concentration (or partial pressure) terms of the products each raised to a power equal to i..

Consider a reversible reaction expressed by the following general equation: where A and B are two substances which react to form new substances C and D and C and D react under the same conditions forming the original substances A and B. Let us assume that the concentrations of these four substances..

. This constant is called equilibrium constant'. For a homogeneous chemical equilibrium, when the concentration of the reactants and products is expressed in moles per litre unit, the equilibrium constant is written as K c and is given by, Further, if the reaction is a..

Critical velocity is the velocity of a liquid flow upto which its flow is streamlined and after which its flow becomes turbulent. The critical velocity depends on coefficient of viscosity ' h ', density of the liquid ' r ', and radius of the tube (r). Using the methods of dimens..