C136W10E1Key - ~ GI3lowIO t ~ 1 N rune MULTIPLE C HOICE C...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
, ~ GI3lowIO t;\ ~ Nrune __________________________ __ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) On a phase diagrrun, the melting point is the srune as 1) _D -'-- __ A) the vapor-pressure curve B) the critical point . +- ' ..lA \~_. L \ . . ..l. ... (Yt. .-\.-r I \lQ.tl. .f (. C\.uu 1f1 C\ r 'f(.lA." ) ~ , ,lJIV ~ the triple point 0 J D) e freezing point "\ (' \..k<11. ',.,g V'I'. ...r.rV 'f'C1\ k ~ \ \ \ '\~ ~ E the boiling point \ '\ () .v. .' ~ 'v 1. ....... --.J ' 2) Large intermolecular forces in a substance are manifested by 2) --.l. __ _ A) high critical temperatures and pressures B) high boiling point C) low vapor pressure D) high heats of fusion and vaporization ~ftheabove 3) What fraction of the volume 0e com ~ is actually within the volume of a face-centered 3) D cubic unit cell? A ) 1 ~'f(\U' cx:rof"'lS ~ ~ ~ c0.\ ()J.X?C SWu~ , A- I E).l. . 16
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4) In liquids, the attractive intermolecular forces are ___ _ A) strong enough to keep the molecules confined to vibrating about their fie:! =- la+ti •• 4'~ints B) not strong enough to keep molecules from moving past each other @ trongenough to hold molecules relatively close together but not strong enough to keep molecules from moving past each other D) very weak compared with kinetic energies of the molecules E) strong enough to hold molecules relatively close together 5) The intermolecular force(s) responsible for the fact that CI-4 has the lowest boiling point in the setCI-4, SiI-4, GeI-4, SnI-4 is/ are A) -EMl'ole dipole interactions B) hydm geF\ boFl£iing @ ondon dispersion forces D) mainl ~ldi=og'ef't bOlldiILg but also dipole-dipole interactions E) mainly London -dispersion forces but also ~oie illferaetitms o..U or-- Tc:\ 6) Ethanol (C2H50H) melts at -114°C. The enthalpy of fusion is 5.02 kJ / mol. The specific heats of solid and liquid ethanol are 0.97 J / g-K and 2.3 J / g-K, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -13 ° to liquid ethanol at - 50°C? A) 9.21 B) -12.7 C) 6.91 D) 4192 E) 207.3 4) 6) CD r~ \" ~ C~) 'EtcH ~ 2\&C (-\~C; -\'c} -\ \4~C J 9= O"\G~\ ~b.OJXO .'-:r~c ~\'( .
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 14

C136W10E1Key - ~ GI3lowIO t ~ 1 N rune MULTIPLE C HOICE C...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online