A mixture of He and Ne at a total pressure of 0.95 atm is found to contain 0.32 mol of He and 0.56 mol of Ne. The partial pressure of Ne is atm.

Partial pressure of Ne is 0.61 atm.

Explanation:

Mole fraction of a gas in mixture = (no. of moles of the gas in mixture)/(total no. of moles of gases in mixture)

Here, total no. of moles of gases = (0.32 + 0.56) moles = 0.88 moles

So, mole fraction of Ne in mixture,

Let's assume both He and Ne along with their mixture behaves ideally,

Hence, in accordance with Dalton's law of partial pressure-

Where, and are partial pressure of Ne and total pressure respectively.

So,  

So, partial pressure of Ne is 0.61 atm.

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