I need help with my chemistry HomeWork please help? I really need , and if youcan please explain but need not?
34.When a nonpolar liquid displays a convex meniscus, which of the following explains this behavior?
a. It has a low surface tension, and therefore clings to the glass
b.The cohensive forses are stronger than the adhensive forces toward the glass
c. The adhensive forces toward the glass are stronger than the cohensive forces
d. The liquid velocity is low
e. none of these
35.You are given the following boiling point data?
a) water,H2O 100
b) methonal, CH3OH 64.96
c) ethonal, CH3CH2OH 78.5
d) diethyl ether, CH3OH2 – OCH2 -CH3 34.5
e)ethylene glycol, HO-CH2-CH2-OH 198
Which one of the above liquids would you expect ti have the highest vapor pressure at room temperature?
a.a b.b c.c d.d e.e
34. A case in point: Mercury. The answer is b.
35. d. The boiling point is the temperature at which the vapor pressure of the liquid equals ambient pressure. Diethyl ether is almost there.
Tags: diethyl ether vapor pressure


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