A vessel contains equal masses of hydrogen, helium and methane. Find out the fractions of the partial pressures in the mixture.

Explanation

To solve the problem of finding the fractions of the partial pressures of hydrogen, helium, and methane in a vessel containing equal masses of these gases, we can follow these steps:

### Step 1: Define the Variables
Let the mass of each gas (hydrogen, helium, and methane) be \( W \).

### Step 2: Calculate the Number of Moles
Using the formula for the number of moles:
\[
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