When a gas is subjected to adiabatic expansion, it gets cooled due to__________________?
Correct answer: D. Energy spent in doing work
- A. Decrease in velocity
- B. Decrease in temperature
- C. Decrease in kinetic energy
- D. Energy spent in doing work
Explanation
For adiabatic expansion, no heat enters the gas, so the energy required for expansion work comes from its internal energy. The internal-energy decrease appears as a fall in temperature.
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