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Charles' Law

12 g N2, 4 g ...

Question

$12 g N_{2}, 4 g H_{2}$ and $9 g O_{2}$ are put into a litre container at $27^{\circ} C$ . What is the total pressure.(in $a t m$ as nearest integer)

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Solution

According to ideal gas equation,
$P \times 1 = (\frac{12}{28} + \frac{4}{2} + \frac{9}{32}) \times 0.0821 \times 300 = 66.74 a t m$
$P = 66.74 a t m$
so nearest integer is 67.

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