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Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoThermodynamics Laws & Specific Heats of GasesMedium2 minQB

PhysicsMediumnumerical

A polyatomic gas has density $8.5 \times 1 0^{- 4}$ g $c m^{- 3}$ at standard conditions. Find its specific heat at constant volume in cal $g^{- 1}$ $K^{- 1}$ (three decimals).

Answer:

0.31

Solution:

$M = 0.85 g L^{- 1} \times 22.4 L = 19.0$ g $m o l^{- 1}$ . $C_{v} = 3 R = 5.96$ cal $m o l^{- 1}$ $K^{- 1}$ , so $c_{v} = \frac{5.96}{19.0} = 0.313$ cal $g^{- 1}$ $K^{- 1}$ .

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

⏱ 2mℹ️ Source: QB

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