Equilibrium Question 866
Question: $ CaC{O_{3(s)}} $
$ \rightarrow $ $Ca{O_{(s)}}+C{O_{2(g)}} $ which of the following expression is correct
Options:
A) $ K_{P}=(P_{CaO}+{P_{CO_2}}/{P_{CaCO_3}}) $
B) $ K_{P}={P_{CO_2}} $
C) $ K_{P}\times (P_{CaO}\times {P_{CO_2}}).{P_{CaCO_3}} $
D) $ \frac{K_{p}[CaO][CO_2]}{[CaCO_3]} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ CaC{O_{3(s)}} $
$ \rightarrow $ $Ca{O_{(s)}}+C{O_{2(g)}} $
$ K_{p}={P_{CO_2}} $
Solid molecule does not have partial pressure so in calculation of $ K_{p} $ only $ {P_{CO_2}} $ is applicable.
