Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamicsMedium2 minQB

PhysicsMediumsingle choice

Two isochoric cooling processes AB and CD are shown in the P-V diagram for the same sample of gas. In which case will the heat exchange be more?

Answer:

Solution:

Isochoric process: $Δ W = 0$ , so $Δ Q = Δ U = n C_{v} Δ T$ .

$Δ Q$ is more where $Δ T$ is more; at fixed volume $Δ P = \frac{n R Δ T}{V}$ .

$(Δ T)_{C D} > (Δ T)_{A B}$ , so heat exchange is more in CD.

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Thermodynamics

⏱ 2mℹ️ Source: QB

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