CHEM 1122 Lecture Notes - Lecture 21: Ideal Gas Law

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Boyle"s la(cid:377) : i(cid:707) assu(cid:295)e co(cid:296)sta(cid:296)t te(cid:295)perature (cid:706)t(cid:707) ii(cid:707)assu(cid:295)e the co(cid:296)tai(cid:296)er is (cid:296)ot ri(cid:258)id iii(cid:707) assu(cid:295)e the total (cid:295)oles o(cid:257) (cid:258)as (cid:706)(cid:296)(cid:707) i(cid:296) the co(cid:296)tai(cid:296)er is co(cid:296)sta(cid:296)t. 1i(cid:296)ce the pressure decreases b(cid:383) a (cid:257)actor o(cid:257) (cid:658), the (cid:376)olu(cid:295)e o(cid:257) the air i(cid:296) his lu(cid:296)(cid:258)s i(cid:296)creases b(cid:383) a (cid:257)actor o(cid:257) (cid:658), se(cid:376)erel(cid:383) da(cid:295)a(cid:258)i(cid:296)(cid:258) his lu(cid:296)(cid:258)s a(cid:296)d possibl(cid:383) killi(cid:296)(cid:258) hi(cid:295). 1o the (cid:295)ost i(cid:295)porta(cid:296)t rule i(cid:296) di(cid:376)i(cid:296)(cid:258) is (cid:296)e(cid:376)er hold (cid:383)our breath . Di(cid:376)ers (cid:295)ust asce(cid:296)d slo(cid:377)l(cid:383) a(cid:296)d breathe co(cid:296)ti(cid:296)uousl(cid:383), allo(cid:377)i(cid:296)(cid:258) the re(cid:258)ulator to bri(cid:296)(cid:258) the air pressure i(cid:296) their lu(cid:296)(cid:258)s back to (cid:656) at(cid:295) b(cid:383) the ti(cid:295)e the(cid:383) reach the sur(cid:257)ace. Charles"s la(cid:377) relatio(cid:296)ship o(cid:257) volu(cid:295)e a(cid:296)d te(cid:295)perature. What do (cid:383)ou thi(cid:296)k is the relatio(cid:296)ship bet(cid:377)ee(cid:296) (cid:376)olu(cid:295)e (cid:706)v(cid:707) a(cid:296)d te(cid:295)perature (cid:706)t(cid:707) i(cid:257) the (cid:296)u(cid:295)ber o(cid:257) (cid:295)oles o(cid:257) (cid:258)as a(cid:296)d pressure is held co(cid:296)sta(cid:296)t . A(cid:376)o(cid:258)adro"s la(cid:377) relatio(cid:296)ship o(cid:257) moles to volu(cid:295)e. Let"s assu(cid:295)e the e(cid:382)ter(cid:296)al pressure a(cid:296)d te(cid:295)perature are co(cid:296)sta(cid:296)t. * direct relation1hip*

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