A) to remove CaO
B) to add more \[CaC{{O}_{3}}\]
C) to maintain high temperature
D) to pump out \[C{{O}_{2}}\]
Correct Answer: D
Solution :
\[CaC{{O}_{3}}(s)CaO(s)+C{{O}_{2}}(g)\] The equilibrium constant for this reaction is given by \[K=[C{{O}_{2}}]\] (as \[CaC{{O}_{3}}\] and \[CaO\] are solid) Hence, to get more \[C{{O}_{2}}\], we need to pump out continuously the \[C{{O}_{2}}\] gas.
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