CHS Kinetic Particle Theory

Catholic High School Soc J Cl\em iotry Wor'kshae1 01 - Kinetic Po1rtlcl1 Theory 8J Name: _____________ ____ _ Mtnt : c1a .. : ___ _ Date: _ _____ _ (Al 1. Multlpft;Cholc• QyttUons 110 mork1J Plugs o1 co«on WOOi soaked re$peclivoly In concen1rnted aquoous ammonia (NH,) ond concenlfa1ed hydroelltonc acid (HC/) are "'-led at the s:ime time 1nto tile oi- ondl of a honzonta1 tube as 51-,, In the diagram below. Tho onda of tl\e tube.,., •outed. Allor a ahot1 lapse ol time. a while do!>OS4 ol ammonium chtorlde waa obMMl<I. Al which ono ol lhe poslllons SltoWn. A. B, C or D does tho depOSit form? [Rulatlve motocutar masses: ammonia. 17. 1\ydrogen chlot1de, 36.5] ( O(IM c,ol Mtii,cd ..... ,.odib lc ..O I ll) 2. In wltk:h conve,ston do waler mo4ecutos toso enocgy? A Ice to water 8 Ice to steam C steam to Ice D water lo steam 3. > nd , of ethanol aro mixed. the total volume Is less than 2x cm' This Is because When x cm of water a x cm A B C D some ethanol evaporates water and ethanol react to produce a gas tha1 escapes water motocules Iii Into gaps t>erween ethanol moleculos water and elhanol react to p<oduce a salt which dissolves , ....,_ ... by: ST on 22 Dec 2019 Page I

Sf.!C 3 Chemisttyl'Kinchc Partide Theory 4. A Jar of hydrogen was inverted over a porous pot w,th the water levels ,rntiaUy at X. as shown In the diagram below. hvdrooen bea ker _LILJ.- ~+- - - air oorous 001 - - - water X - Over a period of tlmo , which one of the following series of changes of water level al X would be obse<ved? A falls, then rises and roturns to X 8 rises, then falls ond rotum s to X C falls and remains or a lowor level D rises and remains al a higher level 5. Which of the foltowlng decreases as a solid is heated 10 oocomo a hQuld? A e C D size of the particles rnoNon of tho particles space between the particles attractive fore.es between the particles ..,~.,.,,.. h-r. ST on 22 OeC 2()19 I L I I) Page Z

:,:>c J r.rw::mistry/K,ncoc ParticJ~ f hcoty 6. Nitrogen dio ido Is x - a dark brown g.as and 1s more dense than au. ·A gas jar contarnlng nitrogen d Xld a,r 10 e 1s sealed wrth a gtas.s plate and 1s lht:n 1m erted on top of a gas jar r:onta!ning nlllOgen dioxide air The glass ptoto Is removed . Which 011(1 of the fOllowlng correclly describes the colours Inside tne gas jars alter a long period of time? [Taken from 5070/08/Jun/O3) ~ uppe r gas Ja.r lower 11•• Jar A brown brown B dnrk brown lighl b<own C colourless dark brown D fight brown dark brown . t i 7. The diagram s show the par1ides In a subslance al IW0 d1ffe<en11ompera1u1es bul al the same pressuro . Olau,lmA o0 og9co oo~o 0 oO 0o 0o ooo O 000 00 0 000 g~cgo~ 0 °o~g -90"C [)uplllll 8 0 0 0 0 - S"C Which of the following most likely lndicales the melting poin t and boiling point of the substance? Metting point/ •c Bolllng point/ •c A -183 -162 B -82 -60 C -102 .34 0 -76 -10 l ( I Last updaled by: ST on 22 Oec20t9 Page J

Sci: 3 Ctir.mi=stry/l<in,el)C Panacie T'heori B. The graph sh th . OW-S e change on lempe,ature w11h time when Ice al -20 "C is heated 10 120 "C 120 u 100 s T u 80 °e 60 a [ 40 ~ 20 R 0 -20 p lime Which entry In the table shows the COtmct change taking place between the points? A B C D points P toa a to R R to S T to U """"11• average ene,gy of particles romalns constant lea melting the volume of steam Is Increasing water boiling g 9. Helium has• melting polnt ol -272 "Cando bolting point ol -269"C . and 15 much lighter than air. Tho following diagram rep,esents helium particles ,n a sealed conta.lner at O "C. 0 0 O 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Which or Jhe following shows helium particles alter the temperature Is lowered lo -100 "C? A 8 Oo oO 00 oooo 0~00 0 0 o 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 D C o o 0 o u o ooooO o 0 o0 0 0 O 0 0 O updated by: sr on 22 Dec 2019 11 Page 4

S<-c :,. Chem.is:UYl'KncbC P-o1nar::1e Theory 10. An inflat ed b 11 a oon goes down beca use gas molecu les can diffuse through the rubber . Four balloons are filled with differen 1 gases al the same temperalure and pressu re Which balloon would go down mosl quickly? [Taken from 99/Nov/0 2\ A B C 0 carbon dioxide , CO 2 methane . C H• nitrogen , I½ oxygen, 02 101 Structured QuesUons 120 mertstl 1. The diagram below shows an apparalus fo, mea,suring lhe rates of diffusion of gases. Rt--- dJ!u<IM plug gu graduattd urbc WJltr Tho time taken for 100 cm' of some gases al r Ip lo diffuse from this apparalus are: .. . Time/• Molecular Mass Gaa 28 CO. carbon monoxide 132 71 Ci,. chlorine gas 211 16 CH,. methane 100 28 N,. nitrogen ? 32 0 ,. 0)()1980 141 (•) (I) Which gas diffuses fastest? ~~'i ~e (ii) Why does lhls gas diffuse tastes!? 1-+ ~ ~ ¼be ~ll'!!!!eJ ' rel~±1~ ~w~ ~ - (Ill) Sugges t lhe time Iha! nitrogen wou ld take 10 diffuse . updated by: ST on 22 Oec2019 B (11 (11 (1) Page 5

Sec 3 Chemlstr, /KlnolJC Panldo Theory (Iv) Name a gas Which w,11 diffuse taster than any of the gases shov. Tl ,n ine table. 1:t,J~9 iu (bl Why Is this appa ratus unsuitable f0< finding the rate of diffuSion of ammonia? 2. The moili ng and bolli ng po,nts of Six substances. A . F. are given in tt>e table . M~ll!!Q ~ ·J11:--- ,..~ ::::r::tp7 ~;;,~:t;:1ii_TJ.~~~ 1 • • , l .'"f A 44 76 solid B ..JO 69 C · 101 .35 gas D 12 53 liquid E • 11 12 F 98 890 solid (a) Comple te the lablo . (b) Write lhe tenor ol a substance whose panldes have the most movem8'11 al 10"C . (1 I 11 I (2) (11 (c) Whal change happen s lo the arrangomenl and movement of Iha particlas of substance B when ii Ir, cooled from aooe 10 20oC? 121 (d) Using the axes given . draw a graph lo show how lomperature changes as substance C Is heated lrom -102"C to 10°C. Temperaluroi"C L --- - - - - - --- - - - - - -+ Tlme/min pdated by: ST on 22 Dec 2019 [2) Page6 I I

' $-tc1C J Chernil'.I.Jy/Kne tjc P • artltfe Thecry 3 · ~ subslanc e melts at 650-C and bods al 1117°C. The figure below shows tho arr , n the Substance at 20CC. ilngomeni cA th,: pa,tu:les I (a) Draw diagrams lo represent the arrangement of the paniclos at 700°C ano 1300°C . [21 700°C 1300"C (b) Describe the arrangemonls of the particlos 01 those two temperatures. [21 4. The diagram shows the start of an experiment using gas jars of hydrogen and carbon dloxlde . hydrogen lid carbon dioxide carbon dioxide lid hydrogen experiment 1 experimen t 2 ISi updaled by: ST on 22 Dec 2019 Page 7

!S-ec 3 ChcmlstJ)dl<,n-ebc Pal"ticie TntXi,y The 5ds are remo ved SO that the gases a1e allowed to mnr. HOIIV w,[1 thii content s of 1r.e puc. c:nang,,.tt Your answer shoul d refer 10· • • • h.ow the amoun ts or carbon dioxide and hydrog en change 1n the gas fars, the spocd of movement of tho gases 1n each expenmon t. the reasons for each change · Th• Encl- Lasl updaled by: ST on 22 Dec 2019 l4l Pago 8