1 mole CaCO3(s) is heated in 5.6 lit vessel so that equilibrium is established at 1092 K . If KP for CaCO3(S)⇌CaO(S)+ CO2(g) at this temperature is 4 atm, equilibrium concentration of CO2 (in mol-lit−1 )

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111.2

133.6

122.4

answer is D.

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Detailed Solution

KP=4 atm=PCO2 P V=n R T P=nV R T P=[CO2] R T 4=[CO2]×22.4273×1092 [CO2]=122.4M .

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