Question
Question: The reaction A(g) + B(g) C(g) + D(g) is studied in a one litre vessel at 250<sup>0</sup>C. The initi...
The reaction A(g) + B(g) C(g) + D(g) is studied in a one litre vessel at 2500C. The initial concentration of A was 3n and that of B was n. When equilibrium was attained, equilibrium concentration of C was found to the equal to the equilibrium concentration of B. What is the concentration of D at equilibrium?
A
n/2
B
(3n – 1/2)
C
(n – n/3)
D
n
Answer
n/2
Explanation
Solution
A + B 
C + D
3n n 0 0 t = 0
(3n–x) (n–x) x x t = teq.
(n–x) = x
n = 2x x =