If 200 mL of He at 0 . 66 atm and 400 mL of O 2 at 0 . 52 atm pressure are raised in 400 mL vessel at 20 ° C then find the partial pressure of He and O 2 ?

Question

If 200 mL of He at 0 . 66 atm and 400 mL of O 2 at 0 . 52 atm pressure are raised in 400 mL vessel at 20 ° C then find the partial pressure of He and O 2 ?, 0 . 33 a n d 0 . 55, 0 . 33 a n d 0 . 52, 0 . 38 a n d 0 . 52, 0 . 25 a n d 0 . 45

MARKS App · Accepted Answer

At 293 K , 200 mL He is exhibiting a pressure of 0 . 66 atm . It occupies 400 mL vessel. Here its partial pressure is reduced to half of its initial pressure. ∴ P H e in the mixture = 0 . 33 atm As 400 mLO 2 at 293 K with a pressure of 0 . 52 atm occupies 400 mL volume at 293 K , hence its partial pressure its not altered will exhibit 0 . 52 atm .

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