In an adiabatic process:
ANo heat exchanged (Q = 0)
BNo work done (W = 0)
CTemperature is constant
DPressure is constant
Answer & Solution
Correct answer: A. No heat exchanged (Q = 0)
1. 'Adiabatic' = no heat exchange with surroundings: Q = 0.
2. First law: ΔU = −W. Internal energy changes only due to work done.
3. Temperature and pressure both CHANGE in an adiabatic process; only Q is zero.
_Source: NCERT Class 11 Physics Ch 11, §11.7 Adiabatic Process_
Related questions
Which of the following is a reversible process in the thermodynamic sense?A refrigerator extracts 600 J from the cold compartment and rejects 800 J to the room. ItsFor an ideal gas the adiabatic equation linking pressure and volume is:A Carnot engine operates between 400 K and 300 K. If it absorbs 800 J from the hot reservoThe change in internal energy of an ideal gas (γ = 1.4) when 2 moles are heated from 300 KThe second law of thermodynamics can be stated as: no engine can convert into work:The Carnot engine's efficiency between source temperature T₁ (hot) and sink T₂ (cold) is:An ideal gas at temperature T₁ is expanded adiabatically. Its final temperature T₂ is: