kinetics

The total energy in the universe is present either as kinetic energy or as potential energy. For example, the water stored in a dam possesses potential energy by virtue of its height (position). When this water is allowed to fall, its potential energy gets converted into kineti..

When a liquid is cooled, the temperature of the liquid decreases. This means the liquid molecules move with lesser velocity. When the liquid is cooled further, the temperature decreases. At a certain stage the kinetic energy of the molecules become so less that intermolecular attraction d..

According to this principle, work done by a force in displacing a body, gives the measure of the change in kinetic energy of the bod..

Let us see what is actually taking place in the following examples: Steam engine: The coal burns. Heat due to the combustion of coal converts water into steam. The expansive force exerted by the steam on the piston of the engine moves the locomotive. Chemical energy is converted to heat energy and ..

The huge moving waves possess kinetic energy. This energy is used to power a turbine. Most wave-energy systems are very small. But, they can be used to power a warning buoy or a small light hous..

It is the process of changing a solid into its liquid state. The temperature at which a solid changes to the liquid state is known as melting point. When a solid is heated, the molecules gain more kinetic energy and start vibrating with a greater velocity and greater amplitude. At a part..

Example 4: Ammonia (NH 3 ) gas decomposes over platinum catalyst to nitrogen gas (N 2 ) and hydrogen gas (H 2 ). The chemical reaction is as follows: fig 6.4(a) - Concentration versus time profile for a zero order reacti..

The total energy in the universe is present either as kinetic energy or as potential energy. For example, the water stored in a dam possesses potential energy by virtue of its height (position). When this water is allowed to fall, its potential energy gets converted into kinetic..

Potential energy = mgh Kinetic energy Kinetic energy = 0 [the velocity is zero as the object is initially at rest] \ Total energy at A = Potential energy + Kinetic energy Total energy at A = mgh (..

Illustration of Conservation of Mechanical Energy - Conversion of gravitational potential energy to kinetic energy: When a body falls from a certain height, its kinetic energy increase..