Masteringchemistry: Chapter 15 Quiz-Google Chrome Secure https: SPRING 2017 CHE

Question

Masteringchemistry: Chapter 15 Quiz-Google Chrome Secure https: SPRING 2017 CHE 102 1555 Chapte 5 Quiz Chapter 15 Question 27-Algorithmic Chapter 15 Question 27 Algorithmic Part A For the endothemic reaction Caco (s) CaO (s) CO2 (g Le Chateliers principle predicts that will result in an increase in the number of moles ofCO2 O increasing the volume ofthe container O increasing the amount of CaO(s O decreasing the temperature increasing the pressure none of the above Submit My Answers Give up Type here to search 00:31:18 Hid 13 of 15 l ned Provide Feedback Continue 12:03 PM 4/25/2017

Explanation / Answer

CaCO3(s) = CaO(s) + CO2(g)

(moles)product < (moles)reactant

According to Lechatelier's principle, a decrease in pressure (and hence increase in volume) shifts the equilibrium to the side where there is more number of moles.

Since, in the above equilibrium, (moles)product < (moles)reactant , an increase in volume will shift the equilibrium to the righht side and hence more number of moles of CO2 will result.

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