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First Law of Thermodynamics

Calculate the...

Question

Calculate the temperature of 2 moles of a gas occupying a volume of 5 liters at 2.46 atmospheres.

A

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B

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C

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D

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Solution

The correct option is A
PV = nRT
$\Rightarrow 2.46 \times 5 = 2 \times .0821 \times T$
$\Rightarrow T = \frac{2.46 \times 5}{2 \times .0821} = 75 K$
$\Rightarrow T = 75 - 273 = - 198^{\circ}$

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