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Chemistry - Thermodynamics - I Question with Solution | TestHub

ChemistryThermodynamics - IFirst law of ThermodynamicsEasy2 minPYQ_2020

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At constant volume, $4 m o l$ of an ideal gas when heated from $300 K$ to $500 K$ changes its internal energy by $5000 J .$ The molar heat capacity at constant volume is ________

Answer:

6.25

Solution:

For ideal gas :

$Δ U = {nC}_{V} [T_{2} - T_{1}]$

$\Rightarrow 5000 = 4 \times C_{V} [500 - 300]$

$\Rightarrow C_{V} = \frac{5000}{800} = 6.25 {J mole}^{- 1} K^{- 1}$

Stream:JEESubject:ChemistryTopic:Thermodynamics - ISubtopic:First law of Thermodynamics

⏱ 2mℹ️ Source: PYQ_2020

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