Thanks for your explanation! In fact, my confusion occurs from an explanation in a textbook. The textbook state that when the temperature of Liquids increases, the average kinetic energy particles incease. Hence, the collision of molecules will be more frequent.
Greetings everyone.
I learned that the distance between molecules in liquid increases while the temperature increases. Hence, its density is decreased. The process is thermal expansion. At the same time, the collision between molecules would be more frequent when the temperature increases...