13. Gases can be liquefied using a two-step process: a compression followed by a

Question

13. Gases can be liquefied using a two-step process: a compression followed by an expansion. During the compression, energy is transferred from the gas as heat; however, during the expansion, the temperature of the gas is lowered. Which of the following compression/expansion combinations satisfies the requirements for gas liquefaction? (A) isothermal compression followed by an adiabatic expansion (B) isentropic compression followed by an adiabatic expansion (C) adiabatic compression followed by an isentropic expansion (D) isobaric compression followed by an isothermal expansion (B) adiabatic compression followed by a isobaric expansion

Explanation / Answer

Answer:

A

The liquefication of the gases are done under the compression cycle which is isothermal, as the temperature is kept constant in the compression process, where once the compression cycle is over it is subjected to the adiabatic expansion,

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