{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

C56HW1 ist - We'll Attempt 1 of 5 Tllle C56HW started...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: We'll! Attempt 1 of 5 Tllle: C56HW started: October 3, 2010 0:13 pm submitted: October 3. 2010 5:23 PM Tine spent: 00:04:51 Total sen-'2: 3/12 : 25% E Total score adjrcted by 0.0 Maxim-n possille score: 12 Collsidet two 17L samples of gas, one H1 and one 02, both at 1 am and 25°C. Accottilg to Gtaham‘s Law: A. ll2 wi efime at a rate about 2 tines [aster that 02. B. ll2 wi affine at a rate about 4 tines [aster that 02. a C. H2 wi effuse at a late about 6 tillee [astet that 02. a D. H2 wi affine at a rate about 16 lines [aster that 02. E. H2 wl effise at a rate equal to that oi 02. Scone: 0]] Consider three 51 llaers, fixed with pressrie gauges and smal valves, each contair 4 g oi gas at 273 K. Flask A contairs H2, llaslr n contairs He, and flask c contairs CH4. Compare the flasks contents ii tenns of the Charactet'nlics Eated. average molectlar kilelic energy A.FlaskA>FlaskB>Fla$kC B.FlaskA<FlaskE<FlaskC BC.FlaskA:FlaskB:FlaskC a D.noneof|he5e Scone: 1/] What is lite ralio of effimion rates for 01 to Kr? A. 2.619 B. 0.6179 c. 1.615 a a D. 0.3019 E. None o[ these is withir 5% of the correct answer 3‘ ore: 0/1 In an effusion expetinellt measuirg tislance as a [mction of tine. an I'lmown gas moved 3‘2““ il 60 s wlrie 02 Indet identical conditions moved 4.34 m. Calctlate the molar mass at the unmwn gas. Scote: 0/] A sample of hydrogen gas was colected over water at 36 ?c and ass mllng. 1he volrine of the conta'net was 5.50 L. mlcriate the nllllbet of moles of H2 colected. (Vapor pres-m of water is 44.5 torr at 35 ?(:) A. 0.29 mol B. 4.69 mol c. 0.27 mol a B D. 2.35 mol E. 0.14 mol fl“ ore: 0/1 1f the volune or a sample of gas is reduced at constant tempetatlle, the average velocity , the average force of an inividual coision , and the average rninber oi coisions with the wal per second _ A. [emails the same, 'ncteases. ilcteases B. remain Ihe same, [entails lite same. iicleases a c. [emails the same, decreases, renrairs the same a 0. decreases, 'ncreases, ilcleases E. 'ncteases. itcleases. itcteases k“ ore: 0/1 1hennal decomposition of 5.0 mellic tons of linestone to line and carbon ciwride quies 9.0 x 105 k] of heat. Convert mi; enelgy to | A- 9.0 x 105] 3- 9.0 x 104 J a C- 9.011103] 0- 9.0 x 109 ] H E. "one of flier-e is wifllil 5% of the collect answer H ole: 0/1 E § § E g; E § i E E a: i; A. exelciiilg by iflitg weights Egoilgouuaideonacoldday a C.cl'i1lti'|g a cup or hot chocolate 3 D. takitg a cold ham E. Noneoffllese E ore: 1/1 A 221 g alt-triun engite part at an ititial temperature of 213°C absorbs 1,566 1 of heat. what E: the lital temperature of the part (0c)? (c of AI = 0.900 J/g-K)? Answer: 1 .00 29. 2 h” ore: 0/1 when an exofllemic reacIioll E carried out il a coffee-c“) cahinelel, what statement E COII'ECt? The limo i. negative. 0. The enthalpy of the products is lower than that or the reactants. a a c. The telllpelatlle 0f the water decreases. n. The enthalpy change for the reaction is posilive. E. The leactiun am heat llolll Iile watet. E ore: 0/1 All IIIhIown Vahllle of walel al 182°C is added to 24.4 ml. of watet at 35.0“C. If flle fllal lelllpetatlle E: 23.5“C, what was flle lllhmwll Vohllle? (Assn-lie Iilal no heat is Insl to “De mtolllcilgs; dof watet = 1.00 WHIL) A. 5.2 ml. n. 1170 ml. again. a D. ZSIII. E. "one of fliese is wiflil 5% of file collect answel E ore: 1/] when 10 g samples of the folowirg materials absorb 100 1 or heat, the telllpelahle ircrease irdicated is observed. Wllicll material has the largest $pecific heal? A. water, 2 K a 8. wood, 6K B c. copper, 26K D. cement. 11 K E. gass. 12 K E ore: 0/1 ...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern