question_answer

A gaseous mixture consists of 16 g of helium and 16 g of oxygen/The ratio\[\frac{{{C}_{p}}}{{{C}_{v}}}\] of the mixture is     AIEEE  Solved  Paper-2005

A) 1.59       

B)        1.62       

C)        1.4         

D)        1.54

Correct Answer: B

Solution :

For the mixture of gases For helium,     and          For oxygen,  and         For He, For Now,  \[{{c}_{v}}=\frac{R}{\gamma -1}\] \[\gamma -1=\frac{R}{{{C}_{V}}}\,\gamma =\frac{R}{{{C}_{V}}}+1=\frac{R}{\frac{29}{18}R}+1\]