Consider the decomposition reaction CaCO3 (s) « CaO (s) + CO2 (g). At 800. ̊C the...

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Question

Consider the decomposition reaction CaCO3 (s) « CaO (s) + CO2 (g).
At 800. ̊C the equilibrium pressure of CO2 in the presence of CaO (s) and CaCO3 (s) is 0.220 bar. (a) From this data, determine the equilibrium constant and Delta standardG for this reaction.
(b) Now consider a previously evacuated 1.00 L container at 800. ̊C into which 0.010 moles of CaO (about 0.6 g) have been placed. CO2 is now very slowly pumped in (allowing any reactions to occur and any equilibrium to be maintained). Show with a sketched graph how the internal pressure changes with the amount of CO2 pumped into the container. Determine pressure points corresponding to the addition of (i) 0.001 mol, (ii) 0.005 mol, and (iii) 0.015 mol of CO2.

science chemistry

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