Inflated ball mass? cold air vs worm air?
Does it matters to the ball's mass how we inflate it to it's maximum, with cold or worm air?cold air is denser ?
Does it matters to the ball's mass how we inflate it to it's maximum, with cold or worm air?cold air is denser ?
1 Answer
Jul 16, 2017
Inflate with cold air.
Explanation:
You are correct.
We can use the Ideal Gas Law to prove it.
(1)
(2)
But
(3)
Also,
(4)
#color(blue)(bar(ul(|color(white)(a/a)ρ = (pM)/(RT)color(white)(a/a)|)))" "#
This shows that density is inversely proportional to the Kelvin temperature.
Thus, you can add a greater mass of air at a lower temperature.