As a fuel, H₂(g) produces only nonpolluting H₂O(g) when it burns. Moreover, it combines with O₂(g) in a fuel cell (Chapter 21) to provide electrical energy.(b) Is the spontaneity of this reaction dependent on T? Explain.

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23-08-2022
Chemistry

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As a fuel, H₂(g) produces only nonpolluting H₂O(g) when it burns. Moreover, it combines with O₂(g) in a fuel cell (Chapter 21) to provide electrical energy.(b) Is the spontaneity of this reaction dependent on T? Explain.

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tripatsingh039 tripatsingh039 · Answer 1 · 2022-08-27T07:18:21+02:00

Yes , the reaction will become non spontaneous at higher temperature.

A spontaneous reaction is one that favors the formation of products under the reaction's current conditions. A bonfire that is raging and exothermic is an illustration of a spontaneous reaction (there is a decrease in the energy of the system as energy is released to the surroundings as heat). Gases like carbon dioxide and water vapor make up a portion of the fire's byproducts. A combustion reaction results in an increase in the system's entropy.

A nonspontaneous reaction is one that, under the specified conditions, does not favor the formation of products. A reaction must be endothermic, accompanied by a reduction in entropy, or both in order to be considered nonspontaneous.

Learn more about nonspontaneous reaction here:

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