NEET Sample Paper NEET Sample Test Paper-73

  • question_answer
    One mole of a monoatomic ideal gas is mixed with one mole of a diatomic ideal gas. The molar specific heat of the mixture at constant volume is

    A) 8                                 

    B) \[\frac{3}{2}\,R\]

    C) 2R                               

    D) 2.5 R

    Correct Answer: C

    Solution :

    \[{{({{C}_{V}})}_{mix}}=\frac{{{\mu }_{1}}{{C}_{{{\nu }_{1}}}}+{{\mu }_{2}}{{C}_{{{\nu }_{2}}}}}{{{\mu }_{1}}\,\,+\,\,{{\mu }_{2}}}\] \[=\,\,\,\frac{1\times \frac{3}{2}R+1\times \frac{5}{2}R}{1+1}\,\,=\,\,2\,R\] \[\left( {{({{C}_{V}})}_{mono}}=\frac{3}{2}R,\,\,{{({{C}_{V}})}_{di}}=\frac{5}{2}\,R \right)\]


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