Question

15. A 200 ml flask having oxygen at 220 mm and a
300 ml flask having nitrogen at 100 mm are
connected in such a way that 0, and N. may combine
in their volumes, if temperature is kept constant. Find
the total pressure of the guseous mixture
(a) 158 mm
(b) 138 mm
(c) 148 mm (d) 168 mm​

Answer 1

Answer:

Option C is correct thanks

Answer 2

According to Dalton's law of partical pressure,

P1 V1 + P2 V2 = PVtotal

Here, P1 =200cc,P2 =300cc,V1 =200mm,V2 =100mm

So, here total volume is 500mm

∴200×200+300×100=P×500

P=140 mm

I hope this answer helps you