Equal weights of methane and oxygen are mixed in an empty container at `25^(@)C`. The fraction of the total pressure exerted by oxygen is

Options

A. `(1)/(3)`
B. `(1)/(2)`
C. `(2)/(3)`
D. `(1)/(3)xx(273)/(298)`

Explanation

To find the fraction of the total pressure exerted by oxygen when equal weights of methane (CH₄) and oxygen (O₂) are mixed in a container at 25°C, we can follow these steps:

### Step 1: Assume Equal Weights
Assume equal weights of methane and oxygen. For simplicity, let’s take 32 grams of each gas.

### Step 2: Calculate Moles of Oxygen
The molecular weight of oxygen (O₂) is 32 g/mol.
Using the formula for moles:
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