What is meant by partial pressure?

Question

Accepted Answer

Welcome back, everyone which of the following correctly describes the partial pressure of a gas. Let's begin by recalling that the concept of partial pressure comes from Dalton's law of partial pressures. Let's recall that this law tells us that the total pressure exerted by a mixture of non reacting gasses is going to equal the sum of the partial pressures of each individual gas component. So we would have the partial pressure of gas, one, for example, plus the partial pressure of gas to plus the partial pressure of gas three and so on and so forth, depending on the number of individual gas components. We should note that this law is important in understanding the behavior of the gas mixture under different conditions. Now, based on what we've outlined, looking at our answer choices, we would be able to rule out choices. A and C which failed to consider our individual gas components and their relationship to our total pressure of our gaseous mixture. And so that means that we can also roll out choice D which states all of the above. So the only correct choice is going to be choice B which correctly describes our partial pressure of a gas by defining it as the pressure contributed by a gas component to the total pressure. So B is our final answer. I hope that this made sense and let us know if you have any questions.

What is meant by partial pressure?

Watch next