Question
Physics Question on Kinetic molecular theory of gases
In an adiabatic expansion of an ideal gas the product of pressure and volume
A
Decreases
B
Increases
C
Remains constant
D
At first increases and then decreases
Answer
Decreases
Explanation
Solution
In an adiabatic expansion as temperature decreases from an ideal gas equation PV=nRT.
Product of pressure and volume also decreases.