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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKTGMedium2 minQB

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A vessel of volume $0.02 m^{3}$ contains a mixture of hydrogen and helium at 20°C and 2 atmospheric pressure. The mass of mixture is 5 gms. Find the ratio of mass of hydrogen to that of helium in the mixture.

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Answer:

Solution:

$P V = n RT \Rightarrow n_{T} = \frac{2 \times 20 lit.}{0.0821 \times 293} = 1.66. \frac{m _{1}}{2} + \frac{m _{2}}{4} = 1.66 \Rightarrow 2 m_{1} + m_{2} = 6.65$ ; given $m_{1} + m_{2} = 5 \Rightarrow m_{1} = 1.65, m_{2} = 3.35 \Rightarrow m_{1} : m_{2} = 1 : 2$ .

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:KTG

⏱ 2mℹ️ Source: QB

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