Question

In the relation, $K_p=K_c(RT{)}^{△n}$, $\Delta n$ is :

• A. number of moles of gaseous reactants - number of moles of gaseous products in a balanced equation.
• B. number of moles of gaseous products - number of moles of gaseous reactants in a balanced equation.
• C. number of moles of gaseous products $\times$ number of moles of gaseous reactants in a balanced equation.
• D. number of moles of gaseous reactants + number of moles of gaseous products in a balanced equation.

Answer 1

The correct option is B number of moles of gaseous products - number of moles of gaseous reactants in a balanced equation.

In the relation $K_p=K_c(RT{)}^{\Delta n}$

where,

$K_p$ is the equilibrium constant calculated from the partial pressures of the reaction.

$K_c$ is the equilibrium constant calculated from the concentrations of the reactions.

R is the universal gas constant

T is the temperature

$\Delta n$ is the number of moles of gaseous products - number of moles of gaseous reactants in a balanced equation. $\Delta n=\sum n_g\left(P\right)-\sum n_g\left(R\right)$