Chemistry

free energy refers to the amount of internal energy in a thermodynamic system that is available to do work. There are different forms of thermodynamic free energy

Petroleum Refining is defined as the industrial process of production of useful petroleum products from crude oil. The crude oil in its raw form is a dark and sticky liquid which is not useful. To get the usable products from the crude oil, it needs to be refined.

These are those polymers which decompose under aerobic or anaerobic conditions, as a result of the action of microorganism/enzymes.

Crystal field theory established in 1929 explains the interaction of the metal ion and the ligand as a pure electrostatic reaction

Polyvinyl chloride is produced from the main component. It is white, brittle solid material available in powder form or granules.

Chirality is an important property of asymmetry in many branches of science. A chiral molecule or ion exists in two stereoisomers that are mirror images of each other, called enantiomers

Optical activity is the ability of a chiral molecule to rotate the plane of plane-polarised light.some organic compounds cause the rotation of polarized light

Elastomers are polymers showing properties of both viscosity and elasticity and are also called viscoelasticity. The molecules of elastomers held together by weak intermolecular forces

Biological Oxygen Demand (BOD) estimates the amount of biodegradable organic matter that is present in polluted waters, effluents and polluted waters

It is a theoretical model which details the molecular composition of the gas in terms of a huge number of sub microscopic particles that contain both atoms and molecules.