The density of a gas at 27∘C and 760 mm pressure is 24. Calculate the temperature at which it will be 18, the pressure remaining constant.
A
V=200.1K
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B
V=400.2K
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C
V=800.4K
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D
None of these
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Solution
The correct option is BV=400.2K Given d1=24 T1=27∘C or 300.15K P1=760mm or 1atm d2=18 T2=? P2=760mm or 1atm Weknowdensity=PMRT ∴d1d2=P1T1×T2P2=T2T1(∵P1=P2=1atm) ∴T2=d1d2×T1 or T2=2418×300.15=400.2K