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Certain amount of a gas at 25^@C and 76c...

Certain amount of a gas at `25^@C` and 76cm Hg occupies volume of 12.0L. What will be the pressure at a height where temperature is `10^@C` and volume is 12.8L?

Text Solution

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Equation of state is given as, `(P_(1)V_(1))/(T_(1)) = (P_(2)V_(2))/(T_(2))`
`P_(1) = 76cm Hg, P_(2) = ? , V_(1) = 12.0L, V_(2) = 12.8L, T_(1) = 298K, T_(2) = 283K`
The pressure at the given height ` = P_(2) = (P_(1)V_(1))/(T_(1)) xx (T_(2))/(V_(2)) = (76 xx 12 xx 283)/(12.8 xx 298) = 67.66 ` cm Hg
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