A gaseous reaction A_{2(g)} to B_{(g)} + frac | vedclass

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

Question

(C) The reaction is $A_{2(g)} 	o B_{(g)} + \frac{1}{2} C_{(g)}$.Let the initial pressure of $A_2$ be $P_0 = 100 \ mm \ Hg$ and pressure at time $t =

Vedclass · Accepted Answer

$8$

Vedclass · Answer

(C) The reaction is $A_{2(g)} 	o B_{(g)} + \frac{1}{2} C_{(g)}$.Let the initial pressure of $A_2$ be $P_0 = 100 \ mm \ Hg$ and pressure at time $t = 5 \ min$ be $P_t = 120 \ mm \ Hg$.Let $x$ be the decrease in pressure of $A_2$ at time $t$.At $t = 0$: $P(A_2) = 100, P(B) = 0, P(C) = 0$. Total pressure $P_0 = 100$.At $t = 5$: $P(A_2) = 100 - x, P(B) = x, P(C) = x/2$.Total pressure $P_t = (100 - x) + x + x/2 = 100 + x/2 = 120$.Thus,$x/2 = 20$,which means $x = 40 \ mm \ Hg$.The rate of disappearance of $A_2$ is $\frac{-d[P_{A_2}]}{dt} = \frac{x}{t} = \frac{40 \ mm \ Hg}{5 \ min} = 8 \ mm \ Hg \ min^{-1}$.Therefore,the correct option is $C$.

$A$ gaseous reaction $A_{2(g)} \to B_{(g)} + \frac{1}{2} C_{(g)}$ shows an increase in pressure from $100 \ mm$ of $Hg$ to $120 \ mm$ of $Hg$ in $5 \ min$. What will be the rate of disappearance of $A_2$ in $mm$ of $Hg/min$?

Similar Questions

The incorrect expression among the following is:

For the reaction $PCl_{5(g)} \rightleftharpoons PCl_{3(g)} + Cl_{2(g)}$,at equilibrium,the mole fraction of $PCl_5$ is $0.4$ and the mole fraction of $Cl_2$ is $0.3$. What will be the mole fraction of $PCl_3$?

Assign $A, B, C, D$ from the given type of reaction.
$PbCl_2 \downarrow + H_2SO_4 \rightleftharpoons PbSO_4 \downarrow + 2HCl$

For the equilibrium reaction $A + B \rightleftharpoons C + D$,if we start with equal concentrations of $A$ and $B$,at equilibrium,the concentration of $C$ is $2$ times that of $A$. Find the value of $K_c$.

For the following reactions,which oxide is more stable?
$X_2 + O_2 \rightleftharpoons 2XO, K_1 = 5$
$X_2 + 2O_2 \rightleftharpoons 2XO_2, K_2 = 10$

Vedclass Test Series

Exam Paper Generator

Online Exam Module