Question

Assertion :$K_p$ can be equal to or less than or even greater than the value of $K_c$. Reason: $K_p=K_c{\left(RT\right)}^{\Delta n}$
the relation between $K_p$ and $K_c$ depends on the change in the number of moles of gaseous reactants and products.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
• C. Assertion is correct but Reason is incorrect
• D. Assertion is incorrect but Reason is correct

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

$K_p$ can be equal to or less than or even greater than the value of $K_c$.
$K_p=K_c{\left(RT\right)}^{\Delta n}$

The relation between $K_p$ and $K_c$ depends on the change in the number of moles of gaseous reactants and products.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

When ${\left(RT\right)}^{\Delta n}>1$, $K_p>K_c$.

When ${\left(RT\right)}^{\Delta n}=1$, $K_p=K_c$.

This is possible when $\Delta n=0$.

When ${\left(RT\right)}^{\Delta n}<1$, $K_p<K_c$.