Question

In an adiabatic compressor, air enters at 100 kPa without heat exchange. What happens to its temperature?

A) Decreases
B) Increases
C) Remains constant
D) Fluctuates

Answer 1

In an adiabatic compression process, the temperature of the air increases due to the work done on it, as no heat is exchanged with the surroundings.

Step-by-step explanation:

In an adiabatic compressor, air that enters at 100 kPa without heat exchange will experience an increase in temperature. This is because, in an adiabatic process, no heat is transferred to or from the system. When a gas is compressed adiabatically, work is done on the gas, which increases the internal energy and thus raises its temperature.

Therefore, the correct answer to what happens to its temperature is B) Increases. This concept is a key principle in thermodynamics, especially in the context of cyclic processes such as those found in refrigeration cycles or internal combustion engines.