JEE Main & Advanced
Chemistry
Equilibrium / साम्यावस्था
Question Bank
Law of equilibrium and Equilibrium constant
question_answer
In a reaction \[A+B\]⇌ \[C+D\], the concentrations of A, B, C and D (in moles/litre) are 0.5, 0.8, 0.4 and 1.0 respectively. The equilibrium constant is [BHU 1981]
A) 0.1
B) 1.0
C) 10
D) \[\infty \]
Correct Answer:
B
Solution :
For A + B ⇌ C + D \[K=\frac{[C]\,\,[D]}{[A]\,\,[B]}=\frac{0.4\times 1}{0.5\times 0.8}=1\].