Question:medium

What term describes a process where there is no heat exchange between a system and its surroundings?

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\textbf{Adiabatic = No heat transfer (Q = 0)}.
Updated On: Mar 20, 2026
  • Isothermal process
  • Adiabatic process
  • Isobaric process
  • Isochoric process
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The Correct Option is B

Solution and Explanation

Step 1: Understanding the Concept:
In thermodynamics, processes are categorized based on which properties remain constant or what type of energy exchange occurs.
Step 2: Detailed Explanation:
1. Isothermal: Occurs at constant temperature ($dT = 0$).
2. Adiabatic: Occurs without any heat transfer into or out of the system ($dQ = 0$). Internal energy change is solely due to work done.
3. Isobaric: Occurs at constant pressure ($dP = 0$).
4. Isochoric: Occurs at constant volume ($dV = 0$).
In meteorology, most rapid vertical movements of air parcels are treated as adiabatic because air is a poor conductor of heat and the process happens too fast for significant mixing.
Step 3: Final Answer:
The process with no heat exchange is called an Adiabatic process.
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