The value of γ for diatomic gas is_______________?
Correct answer: B. 1.4
- A. 1.67
- B. 1.4
- C. γ = 1.3
- D. None
Explanation
For a diatomic ideal gas at ordinary temperatures, gamma = Cp/Cv = 7/5 = 1.4 because the molecules have translational and rotational degrees of freedom. The likely mistake is choosing 1.67, which is the approximate value for a monatomic ideal gas.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Molar Specific Heat of a Gas
Molar specific heat is the heat required to raise the temperature of one mole of a gas by one kelvin, expressed through Q = nCΔT. Questions compare the constant volume value Cv with the constant pressure value Cp, apply the ideal gas relation Cp − Cv = R, and identify how the thermodynamic process affects heat capacity.
Practise Thermodynamics
714 free Thermodynamics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Molar Specific Heat of a Gas questions
Joule Thomson effect is based upon __________ ?
Which one of the following has the highest value of specific heat?
The value of R ( Universal Gas Constant ) = ___________?
Average translational kinetic energy per molecule of an ideal gas is given by_____________?
Boltzman constant K in terms of universal gas constant R and Avagadros number Na is give as_______________?
The number of calories required to raise the temperature of 1g of water from 15 °C to 16 °C is called