Exercises on \'Critical Thinking\', Questions.pdf PDF

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Exercises on 'Critical Thinking', Questions...

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CRI TI CALTHI NKI NGQUES TI ONS Oneoft hegoa l soft hec our s ei st o ha vet her e a de r sf ur t he rde ve l op t he i rc r i t i c a l t hi nki ng s ki l l s .One wa yt oa c hi e ve t hi s goa li st hr ough Soc r a t i c que s t i oni ng . Thr oughoutt hec our s es t ude nt swi l lbea s ke dt owr i t eque s t i onsonc r i t i c a lt hi nki ng dr a wi ngf r om i nf or ma t i ont hePr e f a c es e c t i onB2 .Be l ow a r es omee x a mpl e sofc r i t i c al t hi nki ngque s t i ons( CTQ)t ha ta r ee i t he rs upe r fic i a lordon’ tus eR. W. Pa ul ’ sSi xT ype sof Soc r a t i cQue s t i oni ng . ( 1 )Wha ts pe c i fic a l l yi st hepr oduc t ? Whi l et hi sque s t i onc oul dbeaCTQ f r om t hec l a r i fic a t i onc a t e gor y ,i ti snotagood c r i t i c a lt hi nki ngque s t i onbe c a us ei ti ss upe r fic i a la ndt hei nf or ma t i oni sa boutt he pr oduc ta ndi snotr e l e va ntt os ol vi ngf ort hec onve r s i ona ndr e a c t orvol ume sa swe l l a sc r i t i qui ngt hea ns we r s . ( 2 )I st her e a c t orr e a l l yt ubul a rordoe si tha ves omebul ge si ni t ? Thi si snotagoodc r i t i c a lt hi nki ngque s t i onbe c a us eweknow i nCha pt e r1t ha te ve n i ft her e a c t orva r i e si nc r os ss e c t i ona la r e at hec onve r s i onvol umer e l a t i ons hi pi st he s a me . ( 3 )Ot he rnos ogoodc r i t i c a lt hi nki ngque s t i ons Wi l lt hi sbeont hee x a m? Wha t ’ st hec or r ec ta ns we r s ? Whyi st he r ea“ 2 ”i nt hi se qua t i on? Wha ta r et heuni t soft hi ss ymbol ? Whi l et hel a s tt woque s t i onsa r enotCTQs ,t he yma ybev a l i dque s t i ons . ( 4 )I st her a t el a we x pe c t e dt ohol da tal owe rt e mpe r a t ur e ? Thi sque s t i on i snota good CTQ be c a us ei ti ss upe r fic i a la nd nots uffic i e nt l y pe ne t r a t i ng. Be t t e rwoul dbe Unde rwha tc ondi t i onsmi ghtt hea c t i va t i onene r gya ndr e a c t i onor de rc hangei n t e mpe r a t ur e .Thi sque s t i oni sagoodCTQ be c a us ei te xpl or e st hea s s umpt i onsunde r whi c ht her a tel a w mi ghtc ha nge , s uc ha si nLa ngmui rHi ns c he l woodki ne t i c s . ( 5 )Wha te qua t i onss houl dIus et os ol v et hepr obl e m? Thi sque s t i oni snotagoodCTQ. As i mi l a r , butbe t t e rque s t i oni s , Wha tt houghtpr oc e s sl e d you t oc hoos et heCSTR e qua t i on f ort hec a s eof c ons t a ntvol ume t r i cflow r a t e s ? Thi sque s t i on a s kst o de s c r i be t he a s s umpt i onsne e de dt oa r r i ve a tt he CSTR e qua t i on.

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( 6 )Dot hee x pe r i me nt a lda t at a ke nt of or mul a t et her a t el a wj us t i f yt her e a c t i onor de r be i ngi ni nt e ge r ? Thi si sagood CTQ be c a us ei tpr obe st her e a s onofpe r ha psr oundi ngar e a c t i on or de rof1 . 8upt oas e c ondor de rr e ac t i onwhe nt hee vi de nc ef r om t heda t as uppor t a nor de rof1 . 8 . ( 7 )Wha ta r et hec ons e que nc e sofma ket her e a c t i onor de ri ni nt e ge r ? Thi si sagoodCTQbe c a us ei tpr obe si mpl i c a t i onsa ndc ons e que nc e s .

3 ( 8 )Thel i qui dpha s evol ume t r i cflow r a t ewa se ta t2 5dm / sgi vi nga ss pa c et i meof4 5 s e c onds . Thi sflow r a t ei squi t ehi gh. Doyouf e e lt hi sflow r a t ec a nbea c hi e ve di n pr a c t i c ea ndt ha t9 0 %c onve r s i onc a nbea c hi e ve d? Thi si sagoodCTQ be c a us ei tc ha l l e nge st heque s t i onspe r s pe c t i vea ndvi e w poi nt s f r om apr a c t i c a ls t a ndpoi nt( i s 025dm3 s)r e a s ona bl e ,a ndpr obe si mpl i c a t i onsas t o whe t he r9 0 % c onve r s i on c a n be a c hi e ve d be c a us e ofpe r ha pspoormi x i ng r e s ul t i ngf r om t hehi ghflow r a t e s .

( 9 )Cons t a ntmol a rflow r a t e swe r ea s s ume di nt het r e a t me ntoft hi sque s t i on, how woul dyoura ppr oa c ht ot hi spr obl e m di ffe ri ft hi sa s s umpt i onwer enotva l i d? As s umi ngt ha tt hegi ve nr e a c t i oni shi ghl ye x ot he r mi c , wha ti st hea dva nt a geof us i ngas e mi ba t c hr e a c t orf ort hi spr oc e s s ? The s eque s t i onsa r eoft heS oc r a t i cf or m be c a us et he y pr obe si mpl i c a t i onsa nd c ons e que nc e sofc ha ngi ngt hec ondi t i onsoft heor i gi na lpr obl e m.Thes t ude nti s r e qui r e dt ounde r s t a ndt hepr obl e mi ni t se nt i r e t yr a t he rt ha nj us tme mor i zi ngt he a ppr oa c hus e df ors pe c i ficc ondi t i ons .

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