Question

By increasing the pressure, predict for the reaction,CaCO3(s) gives CaO(s)+CO2(g)
a.proceeds in backward direction b. Forward direction
c.Be at equilibrium d. Not affected by pressure
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Answer 1

a.proceesds in backward direction

Answer 2

a.proceeds in backward direction is the correct answer.

• Number of moles of gaseous entity in product side is 1 while on reactant side is 0.
• With increase in pressure, the equilibrium will shift toward the side of reaction, where less gaseous molecules are present.
• Hence, in this reaction, reactant side does not contain any gaseous molecules, and so, equilibrium will shift in backward direction.