Chemistry - Ideal Gas Question with Solution | TestHub

ChemistryIdeal GasIdeal Gas Equation & problemsEasy2 minQB

ChemistryEasysingle choice

At constant pressure, by what percentage must the absolute temperature of an ideal gas be increased so that its density decreases by 20%?

Answer:

Solution:

At constant $P$ , $d$ = $PM$ / $RT$ is proportional to 1/ $T$ .

$d_{2}$ = 0.80 $d_{1}$ , so $T_{2}$ = $T_{1}$ /0.80 = 1.25 $T_{1}$ .

The absolute temperature increases by 25%.

Answer: (B).

Stream:JEESubject:ChemistryTopic:Ideal GasSubtopic:Ideal Gas Equation & problems

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