thermal expansions of different liquids

Most materials expand when their temperatures increase. The railway tracks, need special joints and supports to allow for expansion. A completely filled and tightly capped bottle of water cracks when it is heated, but you can loosen the lid of a metal jar by running hot water over it. The..

Expansion of Liquids - Liquids do not have a definite shape. They take the shape of the container. Thus, we can specify a liquid by its volume. Hence, we can speak of volume expansion only for liquids. Expansion of liquids..

Heat..

Ocean Thermal Energy - The water at the surface of an ocean gets heated by the heat of the sun and attains a higher temperature than the colder water at deeper levels in the ocean. So, there is always a temperature difference between the water "at the surface of ocean" and "at d..

Breaking down large molecules by heating at high temperature and pressure is termed as thermal cracking. Thermal cracking is further classified into the following classes. Liquid phase thermal cracking process: The higher boiling fractions e.g., fuel oil, ..

When two substances at different temperatures are brought together, heat energy flows from a substance at higher temperature to a substance at lower temperature. The heat flow continues till their temperatures are equalized. At this stage, the substances are said to be in thermal..

is called the heat current. It is found that in steady state, the heat current is proportional to the area of cross-section A and the temperature difference (T 1 - T 2 ) between the ends and is inversely proportional to the length x. Thus, where k is a constant for the material of the slab..

Gases also expand on heating. Their volume expansion is very much greater than that of liquids. If a gas is heated at constant pressure, its volume increases and if a gas is heated at constant volume, its pressure increases due to expansion. Similarly, if we have to st..

Expansion of Gases - Gases also expand on heating. Their volume expansion is very much greater than that of liquids. If a gas is heated at constant pressure, its volume increases and if a gas is heated at constant volume, its pressure increases due to expansion..

Gases also expand on heating. Their volume expansion is very much greater than that of liquids. If a gas is heated at constant pressure, its volume increases and if a gas is heated at constant volume, its pressure increases due to expansion. Similarly, if we have..