Isothermal and adiabatic processes - One Line Questions

1. In an adiabatic process involving an ideal gas, if the temperature doubles, the volume changes by a factor of: — (1/2)^(1/(gamma-1))
2. In a reversible adiabatic process for an ideal gas, the ratio of the change in temperature to the change in volume is proportional to: — (T/V)
3. For a diatomic ideal gas, what is the value of gamma (γ)? — 1.40
4. For a monatomic ideal gas, what is the value of gamma (γ)? — 1.67
5. A process where heat can flow between the system and surroundings is called: — Diathermic
6. For a given change in volume, which process involves more work done by the gas: isothermal expansion or adiabatic expansion? — Isothermal expansion
7. Which process involves the largest amount of heat absorbed by a gas during expansion from state A to state B (where B is at lower pressure and higher volume than A)? — Isobaric expansion
8. Which process involves the least amount of heat absorbed by a gas during expansion from state A to state B (where B is at lower pressure and higher volume than A)? — Adiabatic expansion
9. For an adiabatic process, T * V^(gamma-1) is: — Constant
10. If an ideal gas undergoes an adiabatic compression, its temperature: — Increases
11. For a reversible adiabatic process, dQ = 0. According to the first law of thermodynamics, what does this imply? — dU = -dW
12. The equation PV^gamma = constant for an adiabatic process is derived from: — First Law of Thermodynamics and dQ=0
13. If a gas undergoes an adiabatic process, the P-V curve is steeper than the P-V curve for an isothermal process. This is because: — Gamma (γ) is greater than 1.
14. In an isothermal process of an ideal gas, if the volume is doubled, the pressure becomes: — Half
15. During an adiabatic expansion of a gas, work is done by the gas. According to the first law of thermodynamics, this work is done at the expense of: — The gas's internal energy
16. In an adiabatic process, the change in internal energy (ΔU) is equal to: — -Work done (-W)
17. Which of the following statements is INCORRECT for an adiabatic process? — Temperature remains constant.
18. If an ideal gas is compressed isothermally, what happens to the heat exchanged? — Heat is released by the gas.
19. A quantity of gas is compressed adiabatically. Its temperature will: — Increase
20. In an isothermal process, the internal energy of an ideal gas: — Remains constant
21. In an adiabatic expansion of an ideal gas, the internal energy: — Decreases
22. In an adiabatic expansion of a fixed amount of an ideal gas, the product PV: — Decreases
23. If a gas expands adiabatically, the work done is positive. This means the internal energy of the gas: — Decreases
24. Which thermodynamic process is most closely approximated by the rapid expansion or compression of a gas in an insulated container? — Adiabatic
25. Which process is characterized by constant entropy? — Adiabatic
26. In a rapid compression of a gas in a cylinder, the process is best approximated as: — Adiabatic
27. The condition Q=0 defines a process as: — Adiabatic
28. For a gas obeying PV^gamma = constant, if the initial temperature is T1 and final temperature is T2, then T1 * V1^(gamma-1) = T2 * V2^(gamma-1). This relationship is characteristic of which process? — Adiabatic
29. Which process is typically faster: isothermal or adiabatic? — Isothermal, because heat can be exchanged easily.
30. An ideal gas is compressed rapidly. This process is best described as: — Adiabatic, because there is little time for heat exchange.
31. Consider an ideal gas undergoing an adiabatic process. If its volume is doubled, what happens to its pressure? — It decreases to less than half.
32. Which of the following conditions must be met for a process to be considered isothermal? — The temperature of the system remains constant.
33. Which of the following represents the work done during an isothermal expansion of an ideal gas from volume V1 to V2 at temperature T? — nRT ln(V2/V1)
34. What is the work done in an adiabatic process when a gas expands from volume V1 to V2? — (P1V1 - P2V2) / (gamma - 1)
35. Which of the following is a necessary condition for an isothermal process to occur? — Very slow process
36. If an ideal gas is heated at constant volume (isochoric process), the work done is: — Zero
37. What is the relationship between pressure (P) and volume (V) for an ideal gas undergoing an isothermal process? — PV = constant
38. For an adiabatic process, the relationship between pressure (P) and volume (V) is given by: — PV^gamma = constant
39. What does the symbol 'gamma' (γ) represent in the adiabatic process equation PV^gamma = constant? — Ratio of specific heats (Cp/Cv)
40. When an ideal gas expands isothermally, the work done per mole is given by: — RT ln(V2/V1)
41. If a gas undergoes an isothermal process, the P-V curve is a: — Hyperbola
42. Which of the following is a characteristic of an isothermal compression? — Temperature remains constant, heat is released.
43. If an ideal gas expands isothermally, the work done is equal to: — The heat absorbed by the gas.
44. The work done by a system during an isothermal process is always positive if: — The gas is expanded.
45. Which of the following is true for an adiabatic process? — No heat is exchanged between the system and the surroundings.
46. For an isothermal expansion of an ideal gas, the work done by the gas is: — Positive
47. The specific heat capacity of an ideal gas in an isothermal process is: — Infinite
48. Which law of thermodynamics is directly applied to an isothermal process involving an ideal gas? — First Law
49. For an isothermal process, the first law of thermodynamics (ΔU = Q - W) simplifies to: — Q = W
50. Which of the following is true for any process involving an ideal gas? — ΔU = nCvΔT
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