why do the particles of gases move freely
Kindly refer to the following link:
https://www.meritnation.com/ask-answer/question/why-do-gases-move-endlessly/matter-in-our-surroundings/7356093
https://www.meritnation.com/ask-answer/question/why-do-gases-move-endlessly/matter-in-our-surroundings/7356093