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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesMedium2 minQB

PhysicsMediumnumerical

Two moles of a certain ideal gas at $T_{0} = 300$ K were cooled isochorically so that the gas pressure reduced $n = 2.0$ times. Then, as a result of the isobaric process, the gas expanded until its temperature got back to the initial value. Find the total amount of heat absorbed by the gas in this process.

Answer:

2.49

Solution:

Net $Δ U = 0$ , so $Q = W$ . After the isochoric step $T = 150$ K, then $W = n R Δ T = 2 \times 8.314 \times 150 = 2494$ J.

Subject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics Laws & Specific Heats of Gases

⏱ 2mℹ️ Source: QB

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