Video answer: Chemistry lesson: gas evolution reactions
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- A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.
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A gas evolution reaction is a chemical reaction in which one of the end products is a gas such as oxygen or carbon dioxide. Gas evolution reactions may be carried out in a fume chamber when the gases produced are poisonous when inhaled or explosive.
One of the most common gas evolution reactions is an acid-base reaction, where an acid is combined with a base to produce water and carbon dioxide. This is also commonly called a neutralization...
A gas evolution reaction is a chemical process that produces a gas, such as oxygen or carbon dioxide. In the following examples, an acid reacts with a carbonate, producing salt, carbon dioxide, and water, respectively. For example, nitric acid reacts with sodium carbonate to form sodium nitrate, carbon dioxide, and water (Table 7.8. 1): (7.8.4)
Certain processes generate an off gas component as part of the reaction chemistry. Emissions from such operations can be estimated by assuming that the off gas is saturated with the volatile components in the process liquid. To begin this modeling activity, select Gas Evolution from the Add_Step master pop-up menu.
Electrochemical gas evolution reactions are now of great importance in energy conversion processes and industries. Key to the improvement of catalytic performance lies the development of efficient catalytic electrodes.
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Hydrogen evolution reactions are always accompanied by the electrochemical desulfurization process. Although mass transport leads to greater reaction rates, the large number of gas bubbles formed, resulting from the increased reaction rate, can adversely hinder the contact between the electrodes and the electrolyte.