The pressure of a mixture of equal weights of two gases of molecular weight 4 and 40 is 1.1 atm.What is the partial pressure of the lighter gas in the gas mixture?
A
0.55 atm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
0.75 atm
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
1 atm
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
None of these
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution
The correct option is D1 atm According to Dalton's law of partial pressure,
PA=χA×Ptotal
where, PA = Partial pressure of gas A
χA= Mole fraction of gas A
PTotal= Total pressure
The lighter gas will have a lower value of molecular weight.
Therefore, partial pressure of lighter gas =χlightergas×PTotal