Question

In a mixture of 1 g H\(_2\) and 8 g O\(_2\) the mole fraction of hydrogen is

• A. 0.667
• B. 0.5
• C. 0.33
• D. None of the above

Hint:

Mole fraction is dimensionless and between 0 and 1.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Mole fraction = moles of component/total moles.
Step 2: Detailed Explanation:
Moles H\(_2\) = 1/2 = 0.5 mol
Moles O\(_2\) = 8/32 = 0.25 mol
Total = 0.75 mol
\(\chi_{H_2} = 0.5/0.75 = 0.667\)
Step 3: Final Answer:
Mole fraction is 0.667.