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PART - 2 - Unit V : CH - 14 Breathing and Exchange of Gases — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 2 - Unit V : CH - 14 Breathing and Exchange of Gases2 Marks
Question
What is partial pressure?
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Answer

Partial pressure : The pressure produced by a gas is called its partial pressure. The partial pressure of a gas is proportional to its percentage present in the air, such as the percentage of oxygen in the air and atmospheric pressure is 76 mm. If equal to Hg, then the value of partial pressure of oxygen (pO2) is :
$21 / 100 \times 760=159.6 mm Hg$.

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