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A 410 ml sample of fluorine gas is heated from 25 C to 198 C at constant pressure, what...

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chaver | eNoter

Posted November 1, 2013 at 3:40 AM via web

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A 410 ml sample of fluorine gas is heated from 25 C to 198 C at constant pressure, what is the final volume?

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justaguide | College Teacher | (Level 2) Distinguished Educator

Posted November 1, 2013 at 3:49 AM (Answer #1)

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A sample of fluorine gas with volume 410 ml at 25 C is heated to 198 C with the pressure remaining constant.

The volume (V) of n moles of a substance in the gaseous state, at temperature T and under pressure P is given by `V = (n*R*T)/P` where R is a constant equal to 8.314 J/(mol*K)

Here, n, R and P are constant; only T varies and increases from 298.15 K to 471.15 K.

The volume increases from 410 ml to `410*(471.15/289.15)` = 647.9 ml

The final volume of the sample of fluorine at 198 C is 647.9 ml

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