Three vessels of identical volume certain the given gases at the mentioned pressures at constant temperature. (Assume no reaction between the gases)

1. What is the partial pressure of NO2 gas?
(A) 8 atm
(B) 10 atm
(C) 7.33 atm
(D) 4 atm
2. What would be the ratio of rates of effusion of NO to N2 through a small orifice made on vessel – II?
(A) 12:25
(B) 24:25
(C) 48:25
(D) 37:25
3. Which gas has the least partial pressure?
(A) NO2
(B) NO
(C) N2
(D) Unpredictable