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dissociation pressure


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When a solid compound dissociates to give one or more gaseous products, the dissociation pressure is the pressure of gas in equilibrium with the solid at a given temperature. For example, when calcium carbonate is maintained at a constant high temperature in a closed container, the dissociation pressure at that temperature is the pressure of carbon dioxide from the equilibrium CaCO3(s) ⇌ CaO(s)+CO2(g)

CaCO3(s) ⇌ CaO(s)+CO2(g)

Subjects: Chemistry.


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