Value of K_p in the reaction MgC O_ 3(s) Mg O_ (s) + ,C O_ 2(g) i… - Vidyadip

MCQ

Value of ${K_p}$ in the reaction $MgC{O_{3(s)}}$ $\rightleftharpoons$ $Mg{O_{(s)}}$ $ + \,C{O_{2(g)}}$ is

✓
${K_P} = {P_{CO}}_2$
B
${K_P} = Pc{o_2} \times \frac{{Pc{o_2} \times {P_{MgO}}}}{{{P_{MgC{O_3}}}}}$
C
$K{}_P = \frac{{Pc{o_2} \times {P_{MgO}}}}{{{P_{MgC{O_3}}}}}$
D
${K_P} = \frac{{{P_{MgC{O_3}}}}}{{{P_{C{O_2}}} \times {P_{MgO}}}}$

✓

Answer

Correct option: A.

${K_P} = {P_{CO}}_2$

(a) In this reaction gaseous molecule count

$MgC{O_3} \to Mg{O_{(s)}} + C{O_{2(g)}}$

${K_p} = {P_{C{O_2}}}$

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