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VashaNatasha [74]
3 years ago
8

A sample of fluorine has a volume of 2.3 L when the temperature is -7.4 degC and the pressure is 830 torr. What will be the volu

me when the pressure is 78.55 kPa and the temperature is 104.2 degrees Celsius?
Chemistry
1 answer:
mart [117]3 years ago
8 0

Answer:

V=39.914L

Explanation:

Hello,

Starting by the ideal gas law which always involves absolute temperatures:

PV=nRT

At the initial given conditions, the moles are computed, assuming they are constant:

n=\frac{PV}{RT}= \frac{830torr*\frac{1atm}{760torr} *2.3L}{0.082\frac{atm*L}{mol*K} *(-7.4+273.15)K}=0.1153mol

Now, by solving for the volume at the new pressure and temperature we get:

V=\frac{nRT}{P}=\frac{0.082\frac{atm*L}{mol*K} *377.35K}{78.55kPa*\frac{1atm}{101.325kPa}} =39.914L

Best regards.

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