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A sample of air contains Nitrogen, Oxyge...

A sample of air contains Nitrogen, Oxygen and saturated with water vapour under a total pressure of 640 mm. If the vapour pressure of water at that temperature is 40 mm and the molecular ratio of `N_(2): O_(2)` is 3:1, the partial pressure of Nitrogen in the sample is

A

480 mm

B

600 mm

C

450 mm

D

160 mm

Text Solution

Verified by Experts

The correct Answer is:
C
`D_(N_2) = (D_(N_2))/(n) cdot P_("Total") implies P_(N_2) = 3/4 xx 600 = 450 mm`.
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