Question

In the above question, if $\gamma =1.5$ the gas may

• A. monoatomic
• B. diatomic
• C. a mixture of monoatomic and diatomic gas
• D. a mixture of diatomic and triatomic gas

Answer 1

The correct option is C a mixture of monoatomic and diatomic gas

For monoatomic gas $\eta =\frac{5}{3}=1.67$
and for diatomic gas $\eta =\frac{7}{5}=1.4$
As actual $\gamma =1.5$
Therefore gas must be a mixture of monoatomic and diatomic gas