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  2. Bosch reaction - Wikipedia

    en.wikipedia.org/wiki/Bosch_reaction

    The Bosch reaction is a catalytic chemical reaction between carbon dioxide (CO 2) and hydrogen (H 2) that produces elemental carbon (C,graphite), water, and a 10% return of invested heat. CO 2 is usually reduced by H 2 to carbon in presence of a catalyst (e.g. iron (Fe)) and requires a temperature level of 530–730 °C (986–1,346 °F).

  3. Carbonic anhydrase - Wikipedia

    en.wikipedia.org/wiki/Carbonic_anhydrase

    The opposite is true where a decrease in the concentration of carbon dioxide raises the blood pH which raises the rate of oxygen-hemoglobin binding. Relating the Bohr effect to carbonic anhydrase is simple: carbonic anhydrase speeds up the reaction of carbon dioxide reacting with water to produce hydrogen ions (protons) and bicarbonate ions.

  4. Carbonation - Wikipedia

    en.wikipedia.org/wiki/Carbonation

    Carbonation is the chemical reaction of carbon dioxide to give carbonates, bicarbonates, and carbonic acid. [1] In chemistry, the term is sometimes used in place of carboxylation, which refers to the formation of carboxylic acids. In inorganic chemistry and geology, carbonation is common.

  5. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    This reaction to form carbon dioxide and molybdenum is endothermic at low temperatures, becoming less so with increasing temperature. [18] ΔH° is zero at 1855 K, and the reaction becomes exothermic above that temperature. Changes in temperature can also reverse the direction tendency of a reaction. For example, the water gas shift reaction

  6. Chemical decomposition - Wikipedia

    en.wikipedia.org/wiki/Chemical_decomposition

    A concentrated hydrogen peroxide solution can be easily decomposed to water and oxygen. An example of a spontaneous (without addition of an external energy source) decomposition is that of hydrogen peroxide which slowly decomposes into water and oxygen (see video at right): 2 H 2 O 2 → 2 H 2 O + O 2. This reaction is one of the exceptions to ...

  7. Water gas - Wikipedia

    en.wikipedia.org/wiki/Water_gas

    The reaction is endothermic, so the fuel must be continually re-heated to maintain the reaction. To do this, an air stream, which alternates with the vapor stream, is introduced to combust some of the carbon: O 2 + C → CO 2 (ΔH = -393 kJ/mol) Theoretically, to make 6 L of water gas, 5 L of air is required.

  8. Carbonatation - Wikipedia

    en.wikipedia.org/wiki/Carbonatation

    The carbon dioxide in the air reacts with the alkali in the cement and makes the pore water more acidic, thus lowering the pH. Carbon dioxide will start to carbonatate the cement in the concrete from the moment the object is made. This carbonatation process will start at the surface, then slowly moves deeper and deeper into the concrete.

  9. Carbon dioxide - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide

    Carbon dioxide is soluble in water and is found in groundwater, lakes, ice caps, and seawater. It is a trace gas in Earth's atmosphere at 421 parts per million (ppm) [a], or about 0.042% (as of May 2022) having risen from pre-industrial levels of 280 ppm or about 0.028%.

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