4. Effect of Parameters on Pressure | Gaseous State | IIT JEE Exam – Chemistry - Videos

December 22, 2017

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Effect of Other State Parameters on Pressure
Pressure of gas depends on:-
-the change in momentum per collision (ΔP/collision)
-frequency of collision (z)

Effect of Temperature on Pressure (n, v constant)
-T↑ P↑ (on increasing T, K.E of particles also increases).
– ΔP/collision ↑
– frequency (z)↑

Effect of Number of Moles (n) {where V, T remains constant}
– n↑ P↑
– z(frequency of collision) ↑
– ΔP/collision remains constant
– As T is constant, no change in average K.E. of gas particles.

Effect of Volume on Pressure (n, T constant)
– v↓ P↑ (Boyle’s Law)

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