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Thermal Expansion

At constant p...

Question

At constant pressure and for the fixed amount of a gas the change in volume by increasing or decreasing 1C temperature' is____of the original vol. of a gas at 0C temperature.

A

\frac{1}{280}

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B

\frac{1}{273}

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C

\frac{1}{723}

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D

\frac{1}{300}

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Solution

The correct option is B $\frac{1}{273}$
$V_{t} = V_{o} + V_{o} \frac{t}{273} = V_{o} (1 + \frac{t}{273}) = V_{o} (1 + \frac{1}{273}) = V_{o} (\frac{274}{273}) = V_{o} (1.003) = 1.003 V_{o} \frac{V_{t}}{V_{t - 1}} = \frac{1.003 V_{o}}{1 V_{o}} = 0.003 f a c t o r$

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