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Lab #9 Assignment...

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Abraham 1

Na me :Sh a wnAb r a h a m

La b# 9–Ch a r l e ’ sLa w Pa r t n e r ’ sNa me :J o r d a nEi d l i s z

Da t eofEx p e r i me n t :1 12 1 7

Thep u r p o s eoft h ee x p e r i me n twa st ofig ur eo utt h er e l a t i o n s h i pbe t we e nt hev o l u meofag a sa n d t h et e mp e r a t ur eo fag a sa tc on s t a n tt e mp e r a t u r e . Th i si sd o n et h r o u g hCh a r l e s ’ sLa w.The f u n da me n t a l t h e o r yo rp r i n c i p l eu s e di nt h i se x pe r i me n twa sCh a r l e s ’ sLa w.Cha r l e s ’ sl a ws t a t e s t h a tt h ev ol u meo fag i v e nma s si sd i r e c t l yp r o p o r t i o na lt oi t sKe l v i nt e mp e r a t u r ea tc o n s t a n t p r e s s u r e . Th i si sc a l c u l a t e du s i n gt h ef o r mu l aV=kT. Vi st h ev ol u me , Ti sKe l v i nt e mp e r a t ur eo f t h eg a sa n dki sc o n s t a n tp r o p o r t i o na l l y . Th i si sde p e n d e n to nt h ema s so fg a sa n dt h ep r e s s u r e . Ch a r l e s ’ sl a wc a nb eu t i l i z e da tt wod i ffe r e n tt e mp e r a t u r e sa sl on ga sp r e s s u r ei sk e p tc o ns t a n t . Theme t h odweu s e dd u r i n gt hee xp e r i me n ti sa sf o l l o ws . It u r n e dont heh o t p l a t et ob o i lt he wa t e rwhi l eJ o r d a ng o tt h e2 5 0mLgr a d u a t e dc y l i n de rf r om t h ef r on tde s ka n dt o ok1 70t o1 80 mLt ofil lt h e4 0 0mLb e a ke r .On c eJ o r d a np o u r e dt h ewa t e ri n t ot h eb e a k e ra n dr e t u r n e dt ot h e g r a d u a t ec y l i n d e rt ot h ef r o n td e s k . J o r d a npl a c e dt h eb e a k e ro n t ot h eho tpl a t e . Wh i l et h e h o t p l a t et o o kt i met oh e a tu p , Ib e g a nma ki n gt h ei c ewa t e rb a t hb yfir s tt a k i ngt heb o xwe r e c e i v e da ndt a ki n ge v e r y t h i n go u to fi t . Th e nIt oo kt h eb o xa ndp uti c ei ni tf r o mt h eb o xf u l lo f i c en e a rt h ef r o n td e s k. It h e np o u r e dwa t e rupt ot hel i n en e a rt h et o po ft h eb o x .Id r i e dt h e Er l e n me y e rfla s kwi t hac l e a n , d r yt o we la n dma d es ur et h efla s kwa st h or ou g h l yd r y .J o r d a na n dI b e g a nb yma ki n gs u r et h eh o l ewa swe l ll u b r i c a t e dt ob eu s e di nt heEr l e n me y e rfla s k .We r e c e i v e di nt h eb o xag l a s st u b ewi t has h o r tr u b b e rt u b i n gi n s e r t e di nt ot h eh o l ei nt h er u b be r s t op p e r . J or da nma d es u r et oi n s e r tt h et ub i n gi nt ot h es t o p p e ra swe l la sma d es u r et h ee n do ft h e t u b i n gwa sflu s hwi t ht h ebo t t o mo ft h es t o pp e r . J o r d a nma d es ur et oa t t a c hap i nc hc l a mpt ot h e r u b be rt ub i n ga sc l o s et ot h eg l a s st u b i n ga sp o s s i b l e . Wema d es u r et hec l a mpwa sfir ml y a t t a c h e dbu te n s u r e dt h eo p e n i n go ft her ub b e rt u b i n gwa sn o tc l o s e d . Ifir ml yfitt hes t o p p e ri n t o

Abraham 2 t h eEr l e n me y e rfla s k . Att h i sp o i n t , t h ewa t e rwa sboi l i n g . Weu s e dac l a mpt oa t t a c ht h efla s kt o t h es u p p o r tr odj us ta bo v et h ewa t e r .J o r d a ns l o wl yl o we r e dt h efla s ki nt ot h eb e a k e rt h a th a d b o i l i n gwa t e ru n t i lt h efla s kwa sc o mpl e t e l ys u bme r g e d . Wema d es ur en ott oa l l o wt h efla s kt o t o uc ht h eb ot t o mo rt hes i d e so ft h ebe a k e r . Wet i me dt h efla s ki nt heb o i l i n gwa t e ra n dke p ti t t h e r ef ora b o u t6mi n u t e s . Wei n s e r t e dad i g i t a lt he r mo me t e rt ha twa sp r o v i d e dt ou si n t ot h e b o i l i n gwa t e rf o ra b o u t3 . 5mi n u t e sa n dr e c o r d e dt het e mp e r a t u r eo ft h ewa t e rt ot h en e a r e s t. 5 d e gr e eCe l s i u s . Ne x twi t ht i g h t l yc l o s e dt hep i n c hc l a mpo nt h er u b be rt u b i n ga sc l o s et ot h eg l a s s a n du s et h ec l a mpt or e mo v et h efla s kf r o mt h eb o i l i n gwa t e r . Weq u i c k l yp l a c e di ti nt ot h e p n e u ma t i ct r o u g ho fi c ewa t e ra n dma d es u r ei twa sfli pp e d. Weke p tt h efla s kc o mp l e t e l y s u b me r g e dwi t ht h eg l a s st u b i n gp o i n t i n gdo wn wa r da n dma des u r et h a ti twa ss u b me r g e d . Wh i l e t h ee n do ft h et u b i n gwa ss u bme r g e d ,weo p e n e dt h ec l a mpb u tma d es u r en o t t or e mo v et h e c l a mpf r omt h a tp os i t i o nont h et u b i n g . Wet i me dt oe n s ur et ha twek e p tt h efla s ks ub me r g e di n t h ei c ewa t e rb a t hf o r4mi nu t e s . Wet h e nk e p tt h er u b b e rt u b i n ga n dp i nc hc l a mps ub me r g e da n d r a i s e dt hefla s ku n t i lt h ewa t e rl e v e li n s i d et h efla s kwa sa b o u tt h es a meh e i g h ta st hewa t e rl e v e l i nt h ep n e u ma t i ct r o u g h . Ne x t , wet i g ht l yc l o s e dt hec l a mpwh i l ema ki n gs u r et h ec l a mpa sc l o s e t h et ub i n ga sp o s s i bl e . J o r d a nr e mo v e dt h efla s kf r omt h ep n e uma t i ct r o ug ha n dr e mo v e dt he r u b be rs t o p p e ra s s e mb l y . Weme a s u r e dt hev ol umeo ft h ewa t e ri nt hefla s kt ot h en e a r e s t1mL b yp o u r i n gt h ewa t e ri n t ot h eg r a da t e dc y l i nd e r . Wer e c or d e dt h ev o l u mei nt h ed a t as h e e t .We a l s ome a s u r e dt h et e mp e r a t ur eo ft h ei c ewa t e rb a t ha n dr e c o r d e dt h et e mp e r a t u r ei no urd a t a s h e e t . Ne x t , wec omp l e t e l yfil l e dt h efla s kwi t hwa t e rt ot h et o poft h efla s ka n do p e n e dt hep i n c h c l a mpo nt h er u b b e rs t o p p e ra s s e mb l ya n dr e i n s e r t e dt h ea s s e mbl yi n t ot hefla s kt ot h es a me d e pt ha sweh a dn o t e dpr e v i ou s l yi nou re x p e r i me n t .Wet i g ht e ne dt h ec l a mpa n di n v e r t e dt h e fla s ks ot h a ta n ywa t e ri nt h er u b b e rt u b i n ga b o v et h ec l a mpd r a i ne do u t .Wed r i e dt h eg r a d ua t e d

Abraham 3 c y l i n d e ra n dma d es ur et oop e nt h ep i n c hc l a mp .Wema d es u r et h ec l a mpr e ma i n e di nt h es a me p o s i t i o no nt h et ub i n g . Weme a s u r et h ev o l u meo fwa t e ri nt h efla s ki n c l u d i n gt h ewa t e rt h a twa s i nt h eg l a s st u b i n gb yp o u r i n gt h ewa t e ri nt h efla s ki n t ot h eg r a d u a t e dc y l i nd e rt h r o u g ht heg a s t u b i n g . Wer e c o r d e dt h ev o l u meo fwa t e rt ot h en e a r e s tmi l l i l i t e ro no u rda t as h e e t .Ou rp r o f e s s o r me a s u r e dt h eb a r o me t r i cp r e s s ur ea n dwer e c o r d e dt h ep r e s s u r eo no u rd a t as he e t . Du r i n go u r e x p e r i me n t , wee n c o u n t e r e dn u me r o u sp r o b l e ms . Fi r s t ,whe nwep l a c e dt h eb e a k e ro nt ot h eh o t p l a t e ,wen o t i c e dt h a tbo i l i n gt o o kq u i t eal o n gt i me . Atfir s t , wet h o u g h tt h e r ema yb ea ni s s u e wi t ht h eh o tp l a t ei t s e l fb u tl a t e rwh e nwea s k e dt h epr of e s s o ra n dl o o k e da r ou n dt h ec l a s s r o om, wen o t i c e dt h a te v e r y on ewa sf a c i ngt hes a mei s s u ea swe l ls oweha dt owa i tf o rq u i t eawh i l e . Then e xtp r o b l e mwewe r ef a c i n gwa swh e nwep l a c e dt h eEr l e n me y e rfla s kf r omt h eb o i l i n g wa t e ri n t ot h ei c ec o l db a t h .Wen ot i c e dt h a tf o rs o mer e a s o nn o t h i n gwa sha p p e n i n gi n s i d et he i c ec o l db a t h .Wa t e rwa sno tflo wi n gi n t ot h eEr l e nme y e rfla s ke v e nt h ou g hweo p e n e dt h er u b b e r t u b e . Wec a l l e do u rp r o f e s s o ra nda s k e dh i mwh a twa swr o n g . Ou rp r o f e s s o rt ol du st oe n s u r et h e r u b be rt ub i n gwa sc o mp l e t e l yo pe nb e c a u s ei fi ti sn o t1 0 0p e r c e n top e n ,t h ewa t e rwi l ln o tflo w i n t ot h efla s k . I tt o o ka bo u t1 5mi n u t e sf ort h ewa t e rt os t a r tb o i l i nga n df o rwa t e rt ob e g i n b u b b l i n g . An o t h e ri s s u ewef a c e dd u r i n gt h ee x p e r i me ntwa swh e nwer e mo v e dt heEr l e n me y e r fla s kf r o mt h eb o i l i ngwa t e ra ndp l a c e di ti nt ot h ei c ec o l db a t h . Wh e nwer e mo v e dt h efla s kf r o m t h eb o i l i n gwa t e r , wed i dn ’ tq u i c kl yp l a c et h efla s ki n t ot h ei c ec ol dpn e uma t i ct r o u g h . Th i sl e dt o t h efla s kno tbe i n ga b l et oq u i c k l yc o l l e c twa t e rt hr o u ght h er ub b e rt u b i n g .I nt h ee n dt h a n k st o o u rp r o f e s s o r ,wewe r ea b l et og e t a r o u n dt h e s ep r ob l e msa ndc o mpl e t et hee x pe r i me n t . No w t h e r ea r eaf e wp o t e n t i a le r r o r st h a tc o u l dh a v eo c c u r r e dd ur i n gt h i se x p e r i me n t . On ewa s p o t e n t i a l l ya l l o wi ngt hev a l v et h a ti sa t t a c h e dt ot h er u b b e rt ub i n gt of a l lo ffd u r i n gt h et r a n s f e ro f t h efla s ki n t ot h ei c ec o l dp ne u ma t i ct r o u g h . Th i swo u l db eq ui t ed e t r i me n t a la sy o uwou l dn o t

Abraham 4 h a v et h ea b i l i t yt oa l l o wwa t e rt or us ht h r o u ght h er u b b e rt u bi n g .Ano t h e rp o t e n t i a le r r o rt ha t c o ul dha v eo c c u r r e ddu r i n gt h ee x p e r i me n twa sp o s s i bl ya l l o wi n gt h efla s kt oo v e r h e a tp a s tt he6 mi n u t ema r k .Byd o i n gt h i s ,y o uma yp o t e n t i a l l yd a ma g et h es t o pp e ra n dr ub b e rt u b i n gwh i c h ma yf or c ei tt oflyo u to fft h et o po ft h efla s ka n dpo t e n t i a l l yh u r ts o me o n en e a r b y . I nc o n c l u s i o n , t h i se x p e r i me n tha sgi v e nmer e a ll i f ee x p e r i e n c ea st oh o wt ov e r i f yCh a r l e sl a wa l t h o ug hwe d i d n ’ tv e r i f yi t sl a wb a s e do nt h ee x p e r i me n t a ld a t a ....