Adiabatic Process -Multiple Choice Questions Quiz

Question 1: What is an adiabatic process?

(a) A process with no change in temperature
(b) A process with no heat exchange with the surroundings
(c) A process with no change in volume
(d) A process with constant pressure

Question 2: In an adiabatic expansion of an ideal gas, the temperature of the gas:

(a) Increases
(b) Decreases
(c) Remains constant
(d) Doubles

Question 3: What is the relation between pressure (P) and volume (V) for an adiabatic process of an ideal gas?

(a) P ∝ V
(b) P ∝ V^2
(c) P ∝ 1/V
(d) P ∝ V^-1

Question 4: In an adiabatic compression, the entropy of an ideal gas:

(a) Increases
(b) Decreases
(c) Remains constant
(d) Doubles

Question 5: Which of the following statements is true for an adiabatic process?

(a) ΔQ = ΔU + ΔW
(b) ΔQ = ΔU
(c) ΔQ = ΔW
(d) ΔQ = 0

Question 6: For an ideal gas undergoing an adiabatic expansion, which of the following is constant?

(a) Pressure
(b) Volume
(c) Temperature
(d) Number of moles

Question 7: The adiabatic lapse rate in the Earth's atmosphere is approximately:

(a) 3.5 °C per 1000 feet
(b) 6.5 °C per 1000 feet
(c) 9.8 °C per 1000 feet
(d) 12.5 °C per 1000 feet

Question 8: Which process comes closest to being adiabatic?

(a) Boiling of water in an open container
(b) Boiling of water in a closed, insulated container
(c) Boiling of water with a constant heat source
(d) Boiling of water in a non-insulated container with occasional stirring

Question 9: The adiabatic process is a special case of which process?

(a) Isobaric process
(b) Isothermal process
(c) Isentropic process
(d) Isochoric process

Question 10: Which statement is true regarding the work done in an adiabatic expansion of an ideal gas?

(a) Work done is positive
(b) Work done is negative
(c) Work done is zero
(d) Work done is unpredictable

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Total score: /10

Answer key:

Question 1: b

Question 2: b

Question 3: c

Question 4: c

Question 5: d

Question 6: c

Question 7: b

Question 8: b

Question 9: c

Question 10: b