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Descrição:
Nitrogen dioxide equilibrium. Nitrogen dioxide (NO2) gas exists in equilibrium with dinitrogen tetroxide (N2O4) gas, 2NO2 < > N2O4. NO2 is a brown gas, while N2O4 is colorless. This video the effect of pressure on the NO2 < > N2O4 equilibrium. A gas syringe is filled with a mixture of the two gases. When the plunger is rapidly pushed in to decrease the gas volume by half, the color darkens due to increased concentration of NO2. However, within seconds the color lightens slightly as the equilibrium shifts and some NO2 is converted to N2O4, in accordance with Le Chateliers principle. When the plunger is released, the changes are reversed the mixture first lightens noticeably, and then darkens slightly. A jar filled with nitrogen dioxide at atmospheric pressure is included for color reference.

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Nitrogen Dioxide Equilibrium Video

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ID do Item: 113216337
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