an open mouth bottle contains a gas at 60°c. The temperature to which bottle should be heated so that 1/4 of the mass of the gas may leave it is
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Explanation:
PV=nRT
No. of mass=n=Mm=molar massgiven mass
Air is filled at 60°C in a vessel of open mouth.
Open mouth means constant pressure.
Given, the volume is constant.
PV=MmRT
⟹T∝M1
T1=607−273=333
After heating, 4th1 of air escapes.
m1=m; then m2=43m
T2T1=m1m2
T2333=mm(43)T2=444
Value of T2 is 44
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