Video Experimental Relacionado

Updated: Jul 11, 2026

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction
09:28

Fabrication and Testing of Catalytic Aerogels Prepared Via Rapid Supercritical Extraction

Published on: August 31, 2018

Procesos catalíticos en las atmósferas de la Tierra y Venus

W B Demore, Y L Yung

    Science (New York, N.Y.)
    |September 24, 1982
    PubMed
    Resumen

    Los constituyentes atmosféricos menores como los óxidos de cloro (CIOx) catalizan las reacciones en la Tierra y Venus. Este estudio explica cómo el CIOx y el dióxido de azufre en Venus limitan la descomposición del dióxido de carbono por la luz solar.

    Más Videos Relacionados

    CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light07:08

    CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light

    Published on: June 12, 2019

    Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope14:21

    Performing In Situ Closed-Cell Gas Reactions in the Transmission Electron Microscope

    Published on: July 24, 2021

    Videos de Conceptos Relacionados

    Catalysis02:50

    Catalysis

    The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
    Catalysis01:27

    Catalysis

    Catalysis influences the rate of chemical reactions by providing an alternative reaction pathway with lower activation energy. A catalyst speeds up a reaction, but it is not consumed during the process. The fundamental principle of catalysis is the ability of a catalyst to alter the reaction mechanism, often introducing a more efficient pathway than the uncatalyzed process.In a catalyzed reaction, the catalyst participates directly in the reaction mechanism. It interacts with reactants to form...
    Heterogeneous Catalysis01:22

    Heterogeneous Catalysis

    Heterogeneous catalysis involves a catalyst in a different phase from the reactants. It is a process where the catalyst and the reactants are in distinct phases, typically solid and gas or liquid.Most heterogeneous catalysts are metals, metal oxides, or acids. The list includes transition metals like iron (Fe), cobalt (Co), nickel (Ni), palladium (Pd), platinum (Pt), chromium (Cr), manganese (Mn), tungsten (W), silver (Ag), and copper (Cu). These metals possess partially vacant d orbitals that...
    The Sulfur Cycle01:22

    The Sulfur Cycle

    Sulfur, an important element in the chemical makeup of proteins, is recycled through the atmosphere and aquatic and terrestrial environments. Found in the atmosphere as sulfur dioxide (SO2), sulfur is released by decaying organisms, weathered rocks, geothermal vents, volcanos, and burning fossil fuels. It is deposited into the ecosystem, cycled through the biotic community, and either released back into the atmosphere as gas or deposited in marine sediment for long-term storage and eventual...
    The Carbon Cycle01:14

    The Carbon Cycle

    Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
    Predicting Reaction Outcomes02:24

    Predicting Reaction Outcomes

    Kinetics describes the rate and path by which a reaction occurs. In contrast, thermodynamics deals with state functions and describes the properties, behavior, and components of a system. It is not concerned with the path taken by the process and cannot address the rate at which a reaction occurs. Although it does provide information about what can happen during a reaction process, it does not describe the detailed steps of what appears on an atomic or a molecular level. On the other hand,...