orthehydrogen at O∘C we'shall have the equation
pv p'v
--=--,
27'3 283
+
andforthehydrogenat 20∘Cweshallhavetheequation
pv p"v
=
293 '303⋅
208 SOLUTIONS⋅
Plainlyp"islessthan r, so the column ofmercury will shift to...
+
wards thevesselin which thehydrogenwas atfirst at 20∘0.