JEE Main & Advanced
Chemistry
Equilibrium / साम्यावस्था
Question Bank
Law of equilibrium and Equilibrium constant
question_answer
3.2 moles of hydrogen iodide were heated in a sealed bulb at \[{{444}^{o}}C\] till the equilibrium state was reached. Its degree of dissociation at this temperature was found to be 22%. The number of moles of hydrogen iodide present at equilibrium are [BHU 1982]
A) 2.496
B) 1.87
C) 2
D) 4
Correct Answer:
A
Solution :
\[\frac{22}{100}\times 3.2=0.704\] \[\therefore \] at equil. moles of HI =3.2?0.704 = 2.496