<h2>Hello!</h2>
The term that most likely describe what the scientist is measuring is partial pressure
<h2>Why?</h2>
Final Pressure: Represents the pressure of a gas after it undergoes a change in temperature or volume.
Atmospheric Pressure: Represents the pressure of all the gases in the atmosphere over the Earth's surface.
Combined Pressure: Represents the sum of the pressure of all the gases in a system.
Partial Pressure: Represents the individual contribution to the overall pressure of a gas in a mixture of gases.
The Earth's atmosphere is composed of a mixture of gases, namely Carbon Dioxide (CO₂), Oxygen (O₂), Nitrogen (N), and other trace gases. If the scientist want to know the individual pressure exerted by each of these gases, she'll need to measure the partial pressure of each gas.
Have a nice day!
