Q. Equal volumes of two monoatomic gases, A and B, at same temperature and pressure are mixed. The ratio of specific heats (Cp/Cv) of the mixture will be
A) 0.83
B) 1.50
C) 3.3
D) 1.67
Explanation
[Solution from source] For any monoatomic ideal gas Cv = (3/2)R and Cp = (5/2)R, so a mixture of two monoatomic gases still has Cp/Cv = 5/3 ≈ 1.67. 1.50 is not the value for any simple ideal gas, and values below 1 are impossible. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.