Diffusion of Gases: 1. The spontaneous mixing of molecules of different gases by random motion and collision until the mixture becomes homogeneous is called diffusion of gases. 2. Molecules of more than one gas are involved. 3. Molecules of lighter gases diffuse fastly. Effusion of Gases: 1. The escaping of one by one gas molecules…
Statement: “The total pressure exerted by a mixture of gases is the sum of the partial pressure of all the gases present in the mixture”. Dalton’s law of partial pressure formula/Equation: Mathematically, P= P1 + P2 + P3 – – – – – – – Where P1, P2 and P3 are the partial pressures of…
Introduction: The ratios of the volumes and the ratios of the molecules of reactant and product gases are identical. Gay Lussac who worked on the volume of the gases for a long time could not point out this relationship. It was an Italian Professor of Physics Avogadro who traced out this relationship and derived a…
Definition: The attractive forces between the positive end of one molecule with the negative end of other molecule are called dipole-dipole forces. Explanation: In case of HCl, There is much electronegativity difference between hydrogen and chlorine. Due to this chlorine being more electronegative develops a partial negative charge whereas hydrogen develops partial positive charge. Hence…
Definition: The relationship, which shows the effect of simultaneous changes in pressure and temperature on the volume of given mass of a gas is called ideal gas law or combined gas law. Mathematical Form: (General gas equation) Mathematically, it is expressed as PV = nRT This equation is derived by combining Boyle’s law, Charles’ law…
Following statement of Charles’ law helps to derive absolute zero of temperature. “At constant pressure the volume of a given mass of an ideal gas increases or decreases by 1/273 of its original volume at 0°C for every 1°C rise or fall in temperature respectively.” ABSOLUTE ZERO TEMPERATURE Definition: The temperature at which volume of…