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JEE PHYSICS MCQ: THERMODYNAMICS

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n1n_1 and n2n_2 are the moles of two ideal gases, whose thermodynamics constants, [ratio of (CpCv)\left(\frac{C_p}{C_v}\right) ] are γ1\gamma_1 and γ2\gamma_2 respectively, are mixed. (CpCv)\left(\frac{C_p}{C_v}\right) for the mixture is-
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Correct option: D
n1γ1(γ2−1)+n2γ2(γ1−1)n1(γ2−1)+n2(γ1−1)\frac{n_1 \gamma_1\left(\gamma_2-1\right)+n_2 \gamma_2\left(\gamma_1-1\right)}{n_1\left(\gamma_2-1\right)+n_2\left(\gamma_1-1\right)}
Option D (n1γ1(γ2−1)+n2γ2(γ1−1)n1(γ2−1)+n2(γ1−1)\frac{n_1 \gamma_1(\gamma_2-1)+n_2 \gamma_2(\gamma_1-1)}{n_1(\gamma_2-1)+n_2(\gamma_1-1)}) is correct. It represents the correct formula for the adiabatic index of a mixture of ideal gases based on the number of moles and individual adiabatic indices.

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The work done in which of the following process is zero? Water is used to cool the radiators of engines in cars because A gas expand 0.25  m30.25\,\,{m^3} at constant pressure 103N/m2,{10^3}N/{m^2}, the work done is A thermodynamic process in which temperature TT of the system remains constant though other variable PP and VV may change, is called What is the slope for an isothermal process? For adiabatic processes (γ=CpCv)\left( {\gamma = \frac{{{C_p}}}{{{C_v}}}} \right)
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