CHEM 101 Lecture Notes - Lecture 5: Kelvin, Ideal Gas, Reagent
Document Summary
Right-side up u-shape formed by the top. Line up the bottom with a fiducial mark. Closed at one end and open at the bottom. Covered the open end and inverted it into a tub full of mercury. Noticed that some mercury always flowed out of the tube into the tub. Patmosphere = weight of hg column in barometer/area of hg column. P = mg/a = (mhg * g) / ahg column. P = (mhg * g)(hhg) / ( hhg)(ahg column) = (mhg/vhg column)(g * hhg) = (densityhg)(g) (hhg) S-curve, one end has a flask, the other end is open. The pressure of the trapped gas in the flask compared to the atmospheric pressure. Hg level on trapped gas side will be lower than mercury level of atmospheric side. Hg level on trapped gas side will be higher than mercury level of atmospheric side. Same setup as open end, but the end of the s curve is closed.
