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padilla (tp5647) – Homework 9 – Sutcliffe – (53770)1Thisprint-outshouldhave25questions.Multiple-choice questions may continue onthe next column or page – find all choicesbefore answering.00110.0 pointsA gas has a volume of 2.0 L at a pressure of3.00 atm. What pressure is needed to changethe volume to 6.00 L at constant temperature?1.2.0 atm2.1.0 atmcorrect3.9.0 atm4.4.0 atmExplanation:V1= 2.00 LP1= 3 atmV2= 6.00 LBoyle’s law,P1V1=P2V2, relates the vol-ume and pressure of a sample of gas.P2=P1V1V2=(3.00 atm) (2.00 L)6.00 L= 1.0 atm00210.0 pointsAt constant temperature if the volume of agas sample is tripled the pressure will3V1=V2Boyle’s Law relates the volume and pressureof a sample of gas:P1= 3P2P2=13P100310.0 pointsA certain quantity of a gas occupies 61.3 mLat 68◦C. If the pressure remains constant,what would be the volume of the gas at128◦C?10.0 pointsIf a sample of gas is heated from 100◦C to300◦C at constant pressure, the volume will?by a factor of?.
padilla (tp5647) – Homework 9 – Sutcliffe – (53770)2T2= 300◦C + 273 = 573 KThe temperature increases by a factor of573373= 1.5.According to Charles’ Law, thevolume of the gas would increase by the samefactor.00510.0 pointsA sample of a gas occupies 460 mL at 70.0◦Cand 1.00 atmosphere.At what temperaturewould the gas occupy 650 mL at the samepressure?4Pa. What is the volumeof air at STP that an individual breathes inone day? Give your answers in cubic meters.1.9.98 m3/daycorrect2.505 cm3/day3.505 m3/day4.None of these5.100 m3/day6.9.95 cm3/dayExplanation: