3.2 moles of hydrogen iodide were heated in a sealed bulb at 444°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
A.2.496✓ Correct
C.2
D.4
Explanation
2 2 2HI H I 3.2 mole At equilibrium 22 3.2 3.2 100 x So, at equilibrium moles 22 3.2 3.2 2.496 100 x