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PhysicsPractical physicsMiscellaneousMedium2 minPYQ_2019

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Two mole of oxygen is mixed with eight mole of helium. The effective specific heat of the mixture at constant volume is

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Solution:

For mixture of gases, $C_{V} = \frac{n _{1} ( C _{V} ) _{1} + n _{2} ( C _{V} ) _{2}}{n _{1} + n _{2}}$ Here, $(C_{V})_{1} = \frac{5}{2} R, (C_{V})_{2} = \frac{3}{2} R$ $∴ C_{V} = \frac{2 \times \frac{5}{2} R + 8 \times \frac{3}{2} R}{2 + 8} = \frac{17}{10} R = 1.7 R$

Stream:AIIMSSubject:PhysicsTopic:Practical physicsSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2019

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