In which of the following reactions is K_p | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The relationship between $K_p$ and $K_c$ is given by the equation: $K_p = K_c(RT)^{\Delta n_g}$.For $K_p > K_c$,the term $(RT)^{\Delta n_g}$ must

Vedclass · Accepted Answer

$PCl_{5(g)} \rightleftharpoons PCl_{3(g)} + Cl_{2(g)}$

Vedclass · Answer

(A) The relationship between $K_p$ and $K_c$ is given by the equation: $K_p = K_c(RT)^{\Delta n_g}$.For $K_p > K_c$,the term $(RT)^{\Delta n_g}$ must be greater than $1$. Since $R$ and $T$ are positive,this requires $\Delta n_g > 0$.$\Delta n_g$ is the change in the number of moles of gaseous products and reactants: $\Delta n_g = \sum n_{g, 	ext{products}} - \sum n_{g, 	ext{reactants}}$.For option $A$: $PCl_{5(g)} ightleftharpoons PCl_{3(g)} + Cl_{2(g)}$,$\Delta n_g = (1 + 1) - 1 = 1$. Since $\Delta n_g > 0$,$K_p > K_c$.For option $B$: $2HI_{(g)} ightleftharpoons H_{2(g)} + I_{2(g)}$,$\Delta n_g = (1 + 1) - 2 = 0$. Thus,$K_p = K_c$.For option $C$: $N_{2(g)} + 3H_{2(g)} ightleftharpoons 2NH_{3(g)}$,$\Delta n_g = 2 - (1 + 3) = -2$. Thus,$K_p Therefore,the correct reaction is $A$.

In which of the following reactions is $K_p > K_c$ at $10 \ K$ temperature?

Similar Questions

In which of the following equilibria,$K_p$ and $K_c$ are $NOT$ equal?

Given $K_p$ for the reaction $\frac{1}{2} C_{(g)} \rightleftharpoons \frac{1}{2} A_{(g)} + \frac{1}{2} B_{(g)}$ at a fixed temperature is $0.25 \ atm$. Find the $K_p$ for the reaction $A_{(g)} + B_{(g)} \rightleftharpoons C_{(g)}$ at the same temperature.

The equilibrium constant for the reaction $N_2 + 3H_2 \rightleftharpoons 2NH_3$ is $K.$ Then,the equilibrium constant for the equilibrium $NH_3 \rightleftharpoons \frac{1}{2}N_2 + \frac{3}{2}H_2$ is

For the chemical equilibrium,$CaCO_{3_{(s)}} \rightleftharpoons CaO_{(s)} + CO_{2_{(g)}}$,$\Delta H_{r}^{\circ}$ can be determined from which one of the following plots?

When $4.5 \, \text{mol}$ each of hydrogen and iodine are heated in a $10 \, \text{L}$ closed vessel,$3 \, \text{mol}$ of $HI$ are formed at equilibrium. The equilibrium constant $K_c$ for the reaction ${H_2} + {I_2} \rightleftharpoons 2HI$ is .........

Vedclass Test Series

Exam Paper Generator

Online Exam Module