Star InactiveStar InactiveStar InactiveStar InactiveStar Inactive
 

The thermodynamic state function of a system that indicates the amount of energy available for the system to do useful work at constant T and P.

Latest Articles

  • Gas of rotten eggs

    If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

  • Use of diamonds

    Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...

  • Chemical Safety

    People use chemicals every day for a wide array of purposes, which can include work and house hold duties. Many of us fail to realize that we are actually handling potentially deadly chemicals when we simply clean the bathroom or wash the car. This brings to mind the reason why chemical safety is...

  • Protein Design: Automated protein discovery and synthesis

    In this paper I describe (theoretically) the method(s) of automated protein discovery and synthesis.

  • Creating Malachite egg

    One of the most interesting and obvious chemical experiments is the experiment on the interaction of copper sulfate and calcium carbonate. The latter is contained in the shell of a simple egg, but copper sulphate should be searched in a chemical reagent store. This experience is simple, but...



Most Popular

Gem-dimethyl group

Two methyl groups of the same carbon atom.

Amine

Derivatives of ammonia in which one or more hydrogen atoms have been replaced by organic groups.

Cyclotron

A device for accelerating charged particles along a spiral path.

Artificial Transmutation

An artificially induced nuclear reaction caused by the bombardment of a nucleus with subatomic particiles or small nucei.

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Delocalization

Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.

Chemical Resources

Chemindustry.com - Includes chemicals, chemical companies, engineering, and process equipment. Search tool for products, services, and information.
Chemicals HeadQuarters - Directory of industrial chemicals and chemical products including induced and forced air coolers, halogenated compounds, distilling equipment, and foundry resins.
Chemical Advisory Service - Directories of chemical manufacturers and traders for Australia and New Zealand and chemical manufacturers for the Asia Pacific region.
Chemcompass - The database for the chemical industry. Search in over 20,000 products, 2,000 companies, brands, EINECS or CAS-numbers, and detailled company information.
Chemical Week - Daily news and product updates for professionals in the chemical industry.
American Chemistry Council News and Media - Provides chemistry business and industry news, updated issue briefs, fact sheets, press releases, media contacts and other resources.
About Chemistry - News articles, periodic tables, educational resources, newsletters, and annotated links.
General Chemistry Online - Rich resource for students and teachers of introductory chemistry. Includes interactive course guides and tutorials, an exam survival guide, reference tables, self-grading quizzes and exams, a searchable glossary, a question and answer board, answers to over 300 frequently asked questions, and a chemical trivia quiz.
Chem4Kids - Learn about chemistry including matter, atoms, and reactions. Includes online quizzes.
Chemistry & Environmental Dictionary - Contains definitions for many chemistry, environmental and other related technical terms and acronyms.
EDF Chemical Scoreboard - Toxic Release Inventory data for the US. Sources and amounts of toxic chemicals released to air and water. Also has information on health effects and other topics.
Chemistry Articles - Collection of chemistry and chemical related articles.

 

Overlap

The interaction of orbitals on different atoms in the same region of space.

Coulometry

The quantitative application of Faraday's Law to the analysis of materials. The current and time are the usual variables measured.

Aromatic Hydrocarbons

Benzene and its derivatives.