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0

The equilibrium constant depends on temperature, the only thing it depends on. For an exothermic reaction the equilibrium constant will decrease ie shift towards the reactants side Also consider kinetics as described above

3

There are two separate effects we need to consider here: thermodynamic and kinetic. Let's assume you are only providing the energy thermally. So providing more energy means increasing the temperature (T). Thermodynamically, if a reaction is exothermic, and you increase T, the reaction becomes less favorable (assuming it stays exothermic over that ...

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Though both $\ce{CO2}$ and particulate carbon (soot) cause warming, a direct mathematical relationship of the effects would be specious for a few reasons: The life-times of atmospheric $\ce{CO2}$ and soot differ, and vary with amount of sunlight (enabling plants to absorb $\ce{CO2}$, but not affecting soot appreciably), with amount of precipitation (...

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Reference 1 reports the isomerization barrier for N‐methylacetohydroxamic acid. From the abstract: We have now determined the activation barrier to C–N rotation from major to minor conformation of a small secondary HA in $\ce{D2O}$ to be 67.3 kJ/mol. The HA rotational barrier scales with solvent polarity, as is observed in amides, although the HA barrier ...

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Yes, it is a fact that saturated fats contain more gross energy due to higher H+ concentration. However, unsaturated fats are more digestible and have higher absorption rate, and therefore the metabolizable energy that unsaturated fats provide is higher than that provided by saturated fats.

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Yes Not only is this possible it can be done while extracting electricity from the reaction. This is the key reaction in a hydrogen/oxygen fuel cell. Fuel cells have been known for well over a century and Hydrogen oxygen fuel cells have been used commercially since the 1930s. Platinum is often used as a catalyst for the key reaction in the cells.

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Platinum is a good catalyst for this reaction. This technique is well known. It has been developed in the 19th century by Döbereiner.

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