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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesHard2 minQB

PhysicsHardinteger

One mole of neon is expanded polytropically with $n = 1.4$ and its temperature rises by 40 K. Find the heat received by the gas in joules (nearest integer, negative if heat is lost).

Answer:

-333

Solution:

$W = \frac{R Δ T}{1 - n} = \frac{8.314 \times 40}{- 0.4} = - 831$ J. $Δ U = \frac{3}{2} R Δ T = 499$ J. $Q = Δ U + W = - 333$ J.

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

⏱ 2mℹ️ Source: QB

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