For the reaction, $C a C O_{3 (s)} ⇌ C a O_{(s)} + C O_{2 (g)}, K_{p}$ is equal to:

K_{c}

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K_{c} R T

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K_{c} (R T)^{2}

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K_{c} (R T)^{- 1}

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Solution

The correct option is B $K_{c} R T$
$C a C O_{3} (s) ⇌ C a O (s) + C O_{2} (g)$
For this reaction,
$K_{P} = K_{C} (R T)^{Δ n}$
$\Rightarrow Δ n = n_{P} - n_{R}$
$\Rightarrow Δ n ⟶$ Number of mole of gas (Product)- Number of mole of gas (Reactant)
$Δ n = 1 - 0 = 1$
So, $K_{P} = K_{C} R T$

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