3.2 moles of hydrogen iodide was heated in a sealed bulb at 4440C 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 is
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a
2.496
b
1.87
c
2
d
4
answer is A.
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Detailed Solution
α=22100 × 3.2 = 0.704 (α= degree of dissociation)∴ at equil. moles of HI = 3.2 - 0.704 = 2.496