Which of the following determines the direction of gas movement? a. solubility in water, b. partial pressure gradient, c. temperature, d. molecular weight and size of the gas molecule.

Video transcript

Hello, everyone and welcome to today's video. So the law that states that the partial pressure of a gas above a liquid is directly proportional to the amount of gas dissolved in the liquid is known as, as answer choice. A we have Donaldson's law of partial pressure B. We have the Gay Losa Law, C Henry Law, the Boyles Law. Well, as it turns out this law has a mathematical equation. So this is exactly what we're going to be writing down here on the screen in this mathematical equation, we have that C equals K times P. Now C is going to be the concentration of the dissolved gas P is going to be the partial pressure of this gas and K is just a constant. So here, as we can see, we are relating the concentration of the gas to its partial pressure above of a liquid. This is exactly what the question is stating. And this law or this mathematical equation is going to be part of Henry's law. Therefore, the correct answer for this question is going to be answer choice C Henry's Law. I really hope this video helped you and I hope to see you on the next one.