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5. (20 pts, 2 pts each) True-False questions from chapter 11. Placea T for true or an F for false in the
blank provided. (WHEN YOU ANSWER PLEASE COPY PAST MY QUESTION INYOUR ANSWERING SPACE AND JUST TYPE True/False in the blankspaces.)
_____ Condensed phase means liquid phase only.
_____ Inter-molecular forces in pure molecular substances are theforces within molecules that hold them
together as the repeating units of the matter.
_____ London forces are electrostatic forces that involve induceddipole moments.
_____ Hydrogen bonding can occur in CH3-F, but not in CH4.
_____ Phase changes at constant pressure are characterized by thetemperature remaining constant until
one phase disappears.
_____ Hydrogen bonding accounts for the fact that ice is less densethan liquid water.
_____ Water boils at a lower temperature in New Orleans (which isbelow sea level) than it does at the
highest peak in the Ozark Mountains.
_____ For pure substances, volatility increases as attractiveforces increase.
_____ On a phase diagram (Pvap versus T), the critical point is anexample of a triple point.
_____ Solid metals tend to be ductile.
6. (20 pts, 2 pts each) True-False questions from chapter 13. Placea T for true or an F for false in the
blank provided.
_____ The First Law of Thermodynamics favors all solutionprocesses.
_____ Miscible describes two liquids that are mutually soluble inall proportions.
_____ The solubility of solid solutes in liquid solvents tends todecrease as temperature increases.
_____ The osmolality (or formality) of a 0.30m K2CrO4 solution is0.90 moles of ions /Kg.
_____ Boiling-point depression is one of the colligativeproperties.
_____

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Jean Keeling
Jean KeelingLv2
28 Sep 2019

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