Question

When a gas undergoes adiabatic expansion, it gets cooled. This is because
(1) it is an exothermic process
(2) It is an endothermic process
Internal energy of the system decreases
(4) Ideal gas becomes a real gas


If u know the answer, give explanation or else your answer will be reported ​

Answer 1

Answer:

During adiabatic expansion,the gas is allowed to expand quickly work is done by the gas during its expansion.So,its internal energy decreases.As heat can't be enter the same system for the surroundings,the temperature of gas falls.