Sticky Note
If a gas expands suddenly, then its:
  1. Pressure decreases
  2. Temperature decreases
  3. Pressure and temperature both decrease
  4. None of these
Explanation

When a gas expands suddenly (an adiabatic expansion), it does work on the surroundings without any heat exchange.


As a result, the internal energy of the gas decreases, leading to a decrease in temperature.

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