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he temperature of a system decreases in an(1 Ponto)Adiabatic expansionisothermal expansionisothermal compressionadiabatic compression

Question

he temperature of a system decreases in an

(1 Ponto)

  • Adiabatic expansion
  • Isothermal expansion
  • Isothermal compression
  • Adiabatic compression
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Solution

The temperature of a system decreases in an adiabatic expansion.

Here's why:

  1. An adiabatic process is one in which no heat is gained or lost by the system. The first law of thermodynamics, ΔQ = ΔU + ΔW, can be simplified to ΔU = -ΔW for adiabatic processes since ΔQ = 0.

  2. In an adiabatic expansion, the system does work on the surroundings and the internal energy decreases.

  3. According to the ideal gas law, if the internal energy decreases, the temperature also decreases.

  4. Therefore, in an adiabatic expansion, the temperature of the system decreases.

This problem has been solved

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