Asked by ridhi

Air is filled at 60deg C in a vessel of open mouth. Upto what temperature should the vessel be heated so that one-fourth of the air may escape?
Ans 171degC
Answered by Damon
PV = n R T
P,V and R are constant
so n T is constant
n1 T1 = n2 T2
n2 = .75 n1

n1 T1 = .75 n1 T2
T2 = T1/.75
T1 = 273 + 60 = 333
so
T2 = 333/.75 = 444
444-273 = 171
Answered by ridhi
thank you soo much :)
Answered by raju
thnx
Answered by Jagat
But if we use Charles law such that v1/t1= v2/t2
Then the answer becomes 249.75 K
Ad how the volume is constant.
It is I think volume is changing by 3/4 parts. I'm in dilemma. Can anyone clear my doubt ??
Answered by Angelar
Thats the answer according to S.Chand's also 171K enx for solving
Answered by Aniket
Jagat we cannot use Charles law because the container is open moles at not constant
Answered by Ramesh
Can anyone explain it more clearly.......please as soon as possible 😞😞😞
Answered by Ramesh
Why can't we use charle's law??
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