Physics · 2020
JEE Main · 4 September 2020, Shift 1 · Q8
Match the C_P / C_V ratio for ideal gases with different type of molecules:
Match the $\displaystyle \mathrm{C}_{\mathrm{P}} / \mathrm{C}_{\mathrm{V}}$ ratio for ideal gases with different type of molecules :
| Molecule Type | $\displaystyle \mathrm{C}_{\mathrm{P}} / \mathrm{C}_{\mathrm{V}}$ | ||
| (A) | Monatomic | (I) | $\displaystyle 7 / 5$ |
| (B) | Diatomic rigid molecules | (II) | $\displaystyle 9 / 7$ |
| (C) | Diatomic non-rigid molecules | (III) | $\displaystyle 4 / 3$ |
| (D) | Triatomic rigid molecules | (IV) | $\displaystyle 5 / 3$ |
Official answer
(1)
(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
More from Kinetic Theory of Gases
- A flask contains argon and oxygen in the ratio of 3: 2 in mass and the mixture is kept at 27^° C. The ratio of their average kinetic energy per…2022
- A container of fixed volume contains a gas at 27°C. To double the pressure of the gas, the temperature of gas should be raised to ____ °C.2025
- On the basis of kinetic theory of gases, the gas exerts pressure because its molecules:2021
- The relation between root mean square speed ( v_rms ) and most probable speed ( v_p ) for the molar mass M of oxygen gas molecule at the temperature…2022
- A sample contains mixture of helium and oxygen gas. The ratio of root mean square speed of helium and oxygen in the sample, is:2024
- A gas mixture consists of 2 moles of oxygen and 4 moles of neon at temperature T. Neglecting all vibrational modes, the total internal energy of the…2023
- An air bubble of volume 2.9 cm^3 rises from the bottom of a swimming pool of 5 m deep. At the bottom of the pool water temperature is 17 °C. The…2026
- Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: If the average kinetic energy of…2026
JEE Main 2020 Physics question, with the answer from NTA’s final answer key. Where our answers come from.