CHEM 103: CHAPTER 1/7 QUESTIONS AND ANSWERS WITH SOLUTIONS 2024

CHEM 103: CHAPTER 1/7 QUESTIONS
AND ANSWERS WITH SOLUTIONS 2024
MassK-KANSWERKAKmeasureKofKtheKamountKofKmaterialKinKanKobject;KscaleKorKbalance;Kgrams



WeightK-KANSWERKdeterminedKbyKtheKpullKofKgravityKonKtheKobject,KchangesKdependingKonKlocation



CommonKunitsKofKvolumeK-KANSWERKmatterK"takesKupKspace"

1KliterK=K1.057Kquart

1KmLK=K1Kcc/Kcm^3

1KozK=K29.6KmL

1KtspK=K5KmL

1KqtK=K4Kcups

1KcupK=K8Koz

1KflKozK=K6Ktsp



DensityK-KANSWERKaKcomparison/ratioKofKaKsubstance'sKmassKtoKitsKvolume.



DensityKFormulaK-KANSWERKdK=Km/v



KK=KCK+K273K-KANSWERKKelvinK-->KCelsius



CK=K(FK-K32)KxK1/1.8K-KANSWERKFahrenheitK-->KCelsius



CelsiusK-->KFahrenheitK-KANSWERKFK=K((1.8/1)KxKC)K+K32



PotentialKEnergyK-KANSWERKStoredKchemicalKenergy



KineticKenergyK-KANSWERKWhatKisKtheKenergyKofKmotion

, ExampleKofKpotentialKenergyK-KANSWERKMusclesKwaitingKforKaKrace



ExampleKofKkineticKenergyK-KANSWERKRunningKaKrace



1KcalorieK=K4.184KjoulesK

1KCalorieK=K1000KcaloriesK-KANSWERKConversionsKbetweenKcalories,KCalorie,KandKjoule



calorieK-
KANSWERKtheKamountKofKenergyKrequiredKtoKraiseKtheKtemperatureKofKoneKgramKofKwaterKoneKdegreeKCels

ius



jouleK-KANSWERKusedKtoKmeasureKenergyKinKchemistry



EnergyK-KANSWERKtheKabilityKtoKdoKwork



HeatK-KANSWERKKineticKenergyKflowingKfromKaKwarmerKbodyKtoKaKcolderKone



HeatKCapacityK-
KANSWERKtheKamountKofKheatKneededKtoKraiseKtheKtheKtemperatureKofKexactlyKoneKgramKofKaKsubstanceKb

yKexactlyK1KdegreeKcelsius.



TheKhigherKtheKheatKcapacity...K-
KANSWERKtheKmoreKheatKenergyKitKtakesKtoKraiseKtheKtemperatureKwhichKmeansKtheKslowerKtheKtempKwillK

raise



SpecificKHeatKFormulaK-KANSWERKSpecificKHeatK=KheatK/KgramsKxKchangeKinKtemp.



SolidK-KANSWERKShape-Kdefinite

Volume-Kdefinite

LowestKkineticKenergyKofKtheKthreeKstates