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Chemical Equilibrium question

2000 · Q118

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Chemistry
Chemical Equilibrium
2000 · Q118

Chemical Equilibrium question

2000 · Q118

NEETChemistryChemical EquilibriumMCQ+4 / −1

Equilibrium constant K_p for following reaction
MgCO_3(s)

\rightleftharpoons

MgO_(s) + CO_2(g)

A
K_p = P_CO₂
B
K_p = P_CO₂ $\times$ ${{{P_{C{O_2}}} \times {P_{MgO}}} \over {{P_{MgC{O_3}}}}}$
C
K_p = ${{{P_{C{O_2}}} + {P_{MgO}}} \over {{P_{MgC{O_3}}}}}$
D
K_p = ${{{P_{MgC{O_3}}}} \over {{P_{C{O_2}}} + {P_{MgO}}}}$

View written solutionFree

Correct answer: A

K_p = P_CO₂

As solids do not exert pressure, so their partial pressure is taken as unity.

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