Gas A (Molecular mass 16) and gas B (Molecular mass 4) are confined into a vessel at partial pressure of 2 atm each at 2 7 ∘ C . The gases are then allowed to effuse out at 2 7 ∘ C through a valve til

Question

Gas A (Molecular mass 16) and gas B (Molecular mass 4) are confined into a vessel at partial pressure of 2 atm each at $2 7^{\circ} C$ . The gases are then allowed to effuse out at $2 7^{\circ} C$ through a valve till the pressure inside the vessel becomes 2 atm , after which valve is closed and the remaining gases are heated to $17 7^{\circ} C$ and allowed to react as

A(g) + B(g) $⇌$ C(g) ; $K_{p} = \frac{10}{3} a t m^{- 1}$ at $17 7^{\circ} C$ .

Calculate the partial pressure of C (in atm) at equilibrium, assuming C is not formed until the effusion process is completed at $2 7^{\circ} C$ .

(Assume the rate of effusion of gases to be constant and equal to their initial rate of effusion.)

TestHub · Accepted Answer

A ( g ) + B ( g ) ⇌ C ( g ) K P ​ = 3 10 ​ atm − 1 Partial 2 atm 2 atm After effusion: 3 4 ​ atm 3 2 ​ atm At 17 7 ∘ C : 2 atm 1 atm At equilibrium: 2 − x 1 − x x ( 2 − x ) ( 1 − x ) x ​ = 3 10 ​ 10x 2 -33x+20 x = 5 4 ​ atm

Chemistry - Ideal Gas Question with Solution | TestHub

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