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AQA A Level Physics 7408/2 Paper 2 June 2024 Question Paper
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AQA A Level Physics 7408/2 Paper 2 June 2024
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AQA A Level Physics 7408/2 Paper 2 June 2024Question Paper
, PleaseIwriteIclearlyIinIblockIcapitals.
CentreInumberIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII CandidateInumber
Surname
Forename(s)IIIIIIIIIIIIIIIII
CandidateIsignatureIIIII
IIdeclareIthisIisImyIownIwork.
A-level
PHYSICS
PaperII2
ThursdayI 6IJuneI 2024 Morning TimeIallowed:I2Ihours
Materials For Examiner’s Use
ForIthisIpaperIyouImustIhave:
IIaIpencilIandIaIruler Question Mark
IIaIscientificIcalculator 1
IIaIDataIandIFormulaeIBooklet 2
IIaIprotractor.
3
Instructions 4
IIUseIblackIinkIorIblackIball-pointIpen. 5
IIFillIinItheIboxesIatItheItopIofIthisIpage.
6
IIAnswerIallIquestions.
IIYouImustIanswerItheIquestionsIinItheIspacesIprovided.I DoInotIwrite 7
IoutsideItheIboxIaroundIeachIpageIorIonIblankIpages. 8–32
IIIfIyouIneedIextraIspaceIforIyourIanswer(s),IuseItheIlinedIpagesIatItheIendIof
IthisIbook.I WriteItheIquestionInumberIagainstIyourIanswer(s). TOTAL
IIDoIallIroughIworkIinIthisIbook.I CrossIthroughIanyIworkIyouIdoInotIwant
ItoIbeImarked.
IIShowIallIyourIworking.
Information
IITheImarksIforIquestionsIareIshownIinIbrackets.
IITheImaximumImarkIforIthisIpaperIisI85.
IIYouIareIexpectedItoIuseIaIscientificIcalculatorIwhereIappropriate.
IIAIDataIandIFormulaeIBookletIisIprovidedIasIaIlooseIinsert.
, 2
Do not write
outside the
SectionIA box
box
AnswerIallIquestionsIinIthisIsection.
0 1 AIroomIcontainsIdryIairIatIaItemperatureIofI20.0I°CIandIaIpressureIofI105IkPa.
. 1 ShowIthatItheIamountIofIairIinIeachIcubicImetreIisIaboutI40Imol.
0 1 [1Imark]
0III 1II.II 2IIIIITheIdensityIofItheIdryIairIisI1.25IkgIm−3.
CalculateIcrmsI forItheIairImolecules.
GiveIyourIanswerItoIanIappropriateInumberIofIsignificantIfigures.
[3Imarks]
crmsI =IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIImIs−1
0III 1II .II 3IIIII Calculate,IinIK,ItheIchangeIofItemperatureIthatIwillIdoubleIcrmsI forItheIairImolecules.
[2Imarks]
changeIofItemperatureI=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIK
*02*
IB/M/Jun24/7408/2
, 3
Do not write
outside the
box
0 1 . 4 A room contains moist air at a temperature of 20 °C.
A dehumidifier cools and then condenses water vapour from the moist air.
The final temperature of the liquid water that collects in the dehumidifier is 10 °C.
Drier air leaves the dehumidifier at a temperature of 20 °C.
Table 1 compares the air flowing into and out from the dehumidifier.
TableI1
massIofIwater
ImassIofIair
moistIairIflowingIin 0.0057
drierIairIflowingIout 0.0037
InIoneIhour,IaIvolumeIofI960Im3I ofIairIflowsIthroughItheIdehumidifier.I
AssumeIthatItheIdensityIofItheIairIremainsIconstantIatI1.25IkgIm−3.
DetermineIhowImuchIheatIenergyIisIremovedIinIoneIhourIfromItheIwaterIvapourIbyI
theIdehumidifier.
specificIheatIcapacityIofIwaterIvapourI=I1860IJIkg−1I K−1
specificIlatentIheatIofIvaporisationIofIwaterI=I2.3I×I106I JIkg−1
[3Imarks]
heatIenergyIremovedI=IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIJIII
IIIIII 9
TurnIoverI►
*03*
IB/M/Jun24/7408/2
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