The following are some statements regarding dissociation of lime stone according to the equation $$CaCO3(s)$$⇌$$CaO(s)+CO2(g)$$;Δ$$H=110k$$.J.the reaction is carried in a closed vessel.$$A)$$ The pressure of $$CO2$$ increases when temperature is increased.$$B)$$ The pressure of $$CO2$$ increases when temperature is decreased.$$C)$$ The pressure of $$CO2$$ remains same when volume of vessel is halved.The incorrect statements are

Question

The following are some statements regarding dissociation of lime stone according to the equation $$CaCO3(s)$$⇌$$CaO(s)+CO2(g)$$;Δ$$H=110k$$.J.the reaction is carried in a closed vessel.$$A)$$ The pressure of $$CO2$$ increases when temperature is increased.$$B)$$ The pressure of $$CO2$$ increases when temperature is decreased.$$C)$$ The pressure of $$CO2$$ remains same when volume of vessel is halved.The incorrect statements are

Infinity Learn · Accepted Answer

According to $$Le-Chatelier$$'s principle,addition of gaseous reactants (or) removal gaseous products favours forward reaction.the decomposition of $$CaCO3$$ is endothermic it is favoured at high temperature.If temperature increases more amount of $$CO2$$ is formed. Thus  $$PCO2$$ increases.Hence $$A)$$ is true     $$B)$$ is falseWhen volume of vessel is halved then  pressure of $$CO2$$ changes. B, C are incorrect.

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