What is partial pressure in chemistry?

Answer 1

The partial pressure is the pressure exerted by a gas if it alone occupied the container.

The TOTAL pressure is the sum of the individual partial pressures in a gaseous mixture of several components; the partial pressure exerted by each component is equal to the pressure it would exert if it occupied the container alone.

i.e.

#P_"Total"# #=# #P_1 + P_2 +...........P_n#

Furthermore, presuming perfection,

#P_"Total"# #=# #(n_1RT)/V + (n_2RT)/V + ....(n_nRT)/V#

#=# #(RT)/V{n_1 + n_2 + ....n_n}#

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Answer 2

Jeremiah Adams

Partial pressure in chemistry refers to the pressure exerted by a single component of a gas mixture, assuming that all other components are held constant. It represents the hypothetical pressure that the component would exert if it alone occupied the entire volume of the container. In a mixture of gases, each gas contributes to the total pressure independently, based on its concentration and the ideal gas law. The sum of the partial pressures of all the components in a gas mixture equals the total pressure of the mixture, according to Dalton's law of partial pressures.

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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.