vapour pressure of a liquid

Vapour Pressure of Liquids - Vapour pressure is defined as the partial pressure exerted by the vapors above the liquid surface in equilibrium with liquid at a given temperature. fig 3.3 In illustrations 1a and 1b, the h..

According to the Le Chatelier's principle, this will make the system move in a direction of lower volume. An increase in pressure on the system will result in the condensation of vapours to give liquid, since, liquids have lower volume as compared to va..

Equilibrium between a liquid and its vapours can be represented by the equation...

When a liquid is placed in an open container it disappears completely after some time. However, when the same liquid is placed in a closed container, even after a long period only a part of the liquid disappears. The obvious difference is that the vapours of ..

According to the Le Chatelier's principle, this will make the reaction move in a direction which absorbs heat i.e., the endothermic process will be favoured. As vaporization (liquid g vapours) is an endothermic process, a rise in temperature will favour the process of vaporizat..

We can investigate pressure in a liquid by using the apparatus shown in figure belo..

The vapour pressure of a liquid increases with increasing temperature. As the temperature increases, the number of molecules, which have larger kinetic energy to overcome the intermolecular cohesive forces, increases. As a result more molecules escape from the surface..

Vapour density is the ratio of the mass of a volume of a gas, to the mass of an equal volume of hydrogen, measured under the same conditions of temperature and pressure. According to Avogadro's law, equal volumes of all gases contain equal number of molecules. Thus, let the n..

Transmission of pressure in liquid Pascal's Law Pascal's law states that pressure applied to an enclosed liquid, is transmitted equally to every part of the liquid. This can de demonstrated using a glass vessel as shown in figure above...