Notes On Gaseous State This page provides you all details about the gaseous state of BSc standard. Concerned problems will be solved at the end of each concept. Continue till the end to find the easiest explanation of every concept you need in this regard . Postulates of Kinetic Theory of Gases: 1. All gas consist of a very large number of minute particles, called molecules. 2. The gas molecules are extremely small in size and are separated by large distance. The actual volume of the gas molecules is thus negligible as compared to the total volume occupied by the gas. 3. The pressure exerted by the gas is due to the bombardment of the molecules on the walls of the vessel. 4. The gas molecules collide with one another and also with the walls of the vessels. These collisions are perfectly elastic and there is no loss of energy during these collisions. 5. The distance between the gas molecules are very large. Thus, there is no effective force of attraction or r
Theoritical principles in qualitative analysis (Hydrogen Sulphide scheme) Solubility and Solubility Product : The maximum amount of solute that can be dissolved in a definite amount of solvent at a particular temperature is called the solubility. For example the solubility of NaCl in water is 0.359 g/ml or simply 35.9 g/100ml at 25 degree centigrade and that of AgCl in water is only 520 micro gram/100 g at 50 degree centigrade. Thus we say AgCl is a sparingly soluble salt as it is soluble to a very less extent. Consider the solubility of AgCl, at 50 degree centigrade , It ionises in water as follows: AgCl (s) ⇌ Ag + + Cl - AgCl (s) stands here for solid AgCl Applying the law of chemical equilibium, K = [Ag + ] . [Cl - ] / [AgCl (s)] ---------- equation 1 Since AgCl is sparingly soluble (dissolves in water to a very small extent ), its saturated solution is prepared easily. The point here to note is that, what ever amount of a spairingly s