Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoKinetic Theory of Gases and Gas LawsMedium2 minQB

PhysicsMediumnumerical

An ideal diatomic gas (no vibrations) loses 280 J of heat in an isobaric process. Find the decrease in its internal energy in joules.

Answer:

200.00

Solution:

$Q = n C_{p} Δ T$ and $Δ U = n C_{v} Δ T$ , so

$\frac{Δ U}{Q} = \frac{C _{v}}{C _{p}} = \frac{5}{7}$ .

$Δ U = \frac{5}{7} (280) = 200$ J (a decrease).

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

⏱ 2mℹ️ Source: QB

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