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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsHard2 minQB

PhysicsHardnumerical

Vessel 1 of volume $V$ holds a gas at 2 atm and 300 K. Vessel 2 of volume $2 V$ holds the same gas at 1 atm and 200 K. They are joined and the mixture settles at 250 K. Find the final pressure in atm (two decimals).

Answer:

1.39

Solution:

Moles are conserved: $\frac{2 V}{300} + \frac{1 \times 2 V}{200} = \frac{p ( 3 V )}{250}$ . So $\frac{2}{300} + \frac{2}{200} = 0.016667 = \frac{3 p}{250}$ and $p = 1.39$ atm.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Kinetic Theory of Gases and Gas Laws

⏱ 2mℹ️ Source: QB

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