this is more math statistics then physics. if particles move randomly = center object moves randomly. its rotation depends on how many hits it received from one or other side..
Good day,
i am trying to calculate how much water i need to raise air humidity for condensate to apear. i use formula from psychrometric chart :
humidity ratio g/kg * volume(m3)/volume m3/kg = volume of water needed.
(18-15)*0.032/0.86=0.112g
so as i understand i need 0.112g of water...