Seven grams of nitrogen is mixed with 12 g of oxygen in a tube and then sealed. Calculate the velocity of sound through the tube at `27^@C`.

Explanation

To calculate the velocity of sound through a tube containing a mixture of nitrogen and oxygen at 27°C, we can follow these steps:

### Step 1: Understand the formula for the velocity of sound
The velocity of sound \( V \) in a gas can be calculated using the formula:
\[ V = \sqrt{\frac{\gamma RT}{M}} \]
where:
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