gas price change

By combining Boyle's and Charles' laws, an equation can be derived that gives the simultaneous effect of the changes of pressure and temperature on the volume of the gas. This is known as combined Ideal Gas Equatio..

Gas Laws - Boyle's Law - The volume of a given mass of a dry gas is inversely proportional to its pressure, temperature remaining constant. Robert Boyle (1627 - 1691) discovered this law in 1662 and it was named after him. It can be restated as "The product of the volume and pre..

. The mercury reservoir R is so adjusted that the mercury in the branch B of the U-tube is at a fixed reference mark E to keep the confined gas at a constant volume. Then, we read the height of the mercury in the A branch. The pressure of the confined gas is the difference of th..

By combining Boyle's and Charles' laws, an equation can be derived that gives the simultaneous effect of the changes of pressure and temperature on the volume of the gas. This is known as combined Ideal Gas Equation. A simple and direct method of deriving this 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 the liquid held in an open container can..

Chemical Change - A change in which the composition of a substance is altered is called as chemical change. As a result, the original properties get changed and one or more new substances are formed. Iron is greyish white metal and conducts electricity. It is..

A change in which the composition of a substance is altered is called as chemical change. As a result, the original properties get changed and one or more new substances are formed. Iron is a greyish white metal and conducts electricity. It is attracted by a magnet, a..

. At this stage, the system exhibits constancy in its pressure. Thus, at equilibrium, Rate of evaporation = Rate of condensation It may be noted that equilibrium cannot be attained if the process is carried out in an open vessel. Because in the open vessel, the reverse process, i.e., condensation o..

Equilibrium Involving Physical Changes - Substances exist in three states: solids, liquids and gases. The following types of equilibriums exist in three state..

We know that in chemical reactions, energy is required to break old bonds of the reactants. Energy is also released to form new bonds, which give the end products. The net energy change (released or absorbed) in a reaction will be equal to energy required to break all the bonds in reacta..