But remember, because this is semipermeable membrane side molecules will not be able to go inside. And that means instead, water will try to even out the system and water will flow from a lower concentration to a higher salary of concentration. So we can define as much as I pressure in a second way. Astronic pressure is the pressure that needs to be applied to a membrane to stop the flow of solvent into an area of a higher solid concentration. So whenever we talk about an ideal solution that has a very low solid concentration, we can find osmotic pressure on one side of the equation or on one side of the membrane by using this formula. And this formula states that osmotic pressure is equal to Bonhopper, which is the number of particles a single molecule or a single site molecule breaks into times molarity of our solution times the gas constant or r times temperature in Kelvin.