Question
Chemistry Question on Haloalkanes and Haloarenes
Consider the following diagram and mark the correct answer.
A
(A) Pressure in container-I is 3 atm before opeing the valve.
B
(B) Pressure after opening the valve is 3.57 atm
C
(C) Moles in each compartment are same after opening the valve.
D
(D) Pressure in each compartment is the same after opening the valve.
Answer
(B) Pressure after opening the valve is 3.57 atm
Explanation
Solution
Explanation:
P1×16.42=0.0821×300×2=3atmP2×8.2=0.0821×400×1=4atmP1 initial =3 atmP2 initial =4 atmAfter opening the valve (to reach equilibrium), pressure and temperature in compartment must be same. (3PV=nRTAfter opening value, Pfinal, Tfinal will be same in both containers Pf(16.42+8.21)=(2+1)(0.0821)TfTf=XITI+XIIT‖=23×300+13×400=333.33KPf(16.42+8.2)=(2+1)(0.0821)×333.33Pf=3.334 atm