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  2. Thermal paste - Wikipedia

    en.wikipedia.org/wiki/Thermal_paste

    Thermal paste (also called thermal compound, thermal grease, thermal interface material (TIM), thermal gel, heat paste, heat sink compound, heat sink paste or CPU grease) is a thermally conductive (but usually not electrically conductive) chemical compound, which is commonly used as an interface between heat sinks and heat sources such as high ...

  3. Radical (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Radical_(chemistry)

    Radical elimination can be viewed as the reverse of radical addition. In radical elimination, an unstable radical compound breaks down into a spin-paired molecule and a new radical compound. Shown below is an example of a radical elimination reaction, where a benzoyloxy radical breaks down into a phenyl radical and a carbon dioxide molecule. [7]

  4. Riba - Wikipedia

    en.wikipedia.org/wiki/Riba

    Narrower definition in most Muslim-majority countries: riba means "excessive interest" [Note 3] or "compound interest" (John Esposito). [ Note 4 ] However, they allow interest-like charges, described as "commission" (Cyril Glasse), [ 33 ] or legal subterfuges ( ḥiyal ), such as a lender buying something from the borrower for cash, while ...

  5. Mortgage calculator - Wikipedia

    en.wikipedia.org/wiki/Mortgage_calculator

    Mortgage calculators are automated tools that enable users to determine the financial implications of changes in one or more variables in a mortgage financing arrangement. . Mortgage calculators are used by consumers to determine monthly repayments, and by mortgage providers to determine the financial suitability of a home loan applicant.

  6. Polar aprotic solvent - Wikipedia

    en.wikipedia.org/wiki/Polar_aprotic_solvent

    A polar aprotic solvent is a solvent that lacks an acidic proton and is polar. Such solvents lack hydroxyl and amine groups. In contrast to protic solvents, these solvents do not serve as proton donors in hydrogen bonding, although they can be proton acceptors.

  7. Soil chemistry - Wikipedia

    en.wikipedia.org/wiki/Soil_chemistry

    Soil chemistry is the study of the chemical characteristics of soil.Soil chemistry is affected by mineral composition, organic matter and environmental factors. In the early 1870s a consulting chemist to the Royal Agricultural Society in England, named J. Thomas Way, performed many experiments on how soils exchange ions, and is considered the father of soil chemistry. [1]

  8. Plant secondary metabolism - Wikipedia

    en.wikipedia.org/wiki/Plant_secondary_metabolism

    Primary metabolism in a plant comprises all metabolic pathways that are essential to the plant's survival. Primary metabolites are compounds that are directly involved in the growth and development of a plant whereas secondary metabolites are compounds produced in other metabolic pathways that, although important, are not essential to the functioning of the plant.

  9. Lattice energy - Wikipedia

    en.wikipedia.org/wiki/Lattice_energy

    ε 0 is the permittivity of free space, equal to 8.854 × 10 −12 C 2 J −1 m −1; r 0 is the nearest-neighbor distance between ions; and n is the Born exponent (a number between 5 and 12, determined experimentally by measuring the compressibility of the solid, or derived theoretically).