Question

In which ofthe followmg processes, heat is neither absorbed nor released by a system?
(1) isothermal
(2) adiabatic
(3) isobaric
(4) isochoric

Answer 1

In adiabatic processes, heat is neither absorbed nor released by a system.

Step by step explanation:

Adiabatic process:

It is a process that occurs without heat transfer into or out of system ;Q = 0.

                          $\bold{\Delta U =U_{2}-U_{1}=-W}$

• The "W" is negative for adiabatic expansion process due to the decreases of internal energy.

• The "W" is positive for adiabatic compression process  due to the increases of internal energy.

• Increase the temperature gas is compressed.

• Decrease the temperature ,gas is expanded.

Hence, correct answer -2