| For the equilibrium |
| \[MgC{{O}_{3}}MgO(s)+C{{O}_{2}}(g)\] |
| Which of the following expressions is correct? [AIPMT 2000] |
A) \[{{K}_{p}}={{P}_{C{{O}_{2}}}}\]
B) \[{{K}_{p}}=\frac{[MgO]\,[C{{O}_{2}}]}{[MgC{{O}_{3}}]}\]
C) \[{{K}_{p}}=\frac{{{P}_{MgO}}+{{P}_{C{{O}_{2}}}}}{{{P}_{MgC{{O}_{3}}}}}\]
D) \[{{K}_{p}}=\frac{{{P}_{MgO}}+{{P}_{C{{O}_{2}}}}}{{{P}_{MgC{{O}_{3}}}}}\]
Correct Answer: A
Solution :
In heterogeneous system  is not based upon concentratrion or pressure of solid substance. Hence, at equilibrium their concentration or pressure are assumed as one |
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