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The best definition is <span>pressure that is exerted by one gas as if it occupied a container by itself.
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The partial pressure of one gas in a mixture of gases, contained in a given volume, is the pressure that that one gas would exert if it occupied the entire volume all by itself. </span>
Answer:
Temperature and Pressure
Explanation:
Temperature and pressure cause change in volume.
So any change in volume will alter the ratio of density as given by equation of density.
Density = mass/ volume
Change in volume will alter the ratio.
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