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The volume of a certain amount of gas at...

The volume of a certain amount of gas at `25^(@) and 100`nm of Hg pressure is 80ml. The gas is explanded to 160ml keeping the temperature constant. Calculate the pressure of expanded gas.

Text Solution

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`P_(1)=100` cm of Hg, `V_(1)=80 ml, P_(2)=xcm` of Hg, `V_(2)=160ml`
From Boyle.s law we have, `P_(1)V_(1)P_(2)V_(2)` or, `100times80=xtimes160` or, `x=(100times80)(160)=50` cm
`therefore` Pressure of expanded gas will be 50cm of Hg.
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