What does partial pressure of oxygen mean?

Answer 1

The partial pressure of any gas in a gaseous mixture is the same as the pressure that gas would exert if it alone occupied the container.

Both you and I are currently breathing air at approx. #1*atm# pressure. In terms of partial pressures, this is #0.21*atm# #"dioxygen"#, and #0.79*atm# #"dinitrogen"#. The total pressure is the sum of the partial pressures.

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Answer 2

Avery Adams

Partial pressure of oxygen refers to the pressure exerted by oxygen molecules in a mixture of gases. It represents the contribution of oxygen to the total pressure of the gas mixture and is proportional to the fraction of oxygen molecules in the mixture. It is typically expressed in units of pressure, such as atmospheres (atm), millimeters of mercury (mmHg), or pascals (Pa).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.