Q.52. The partial pressures of N 2 ,   O 2   a n d   C O 2 in a vessel are 38 cm of Hg, 190 torr and 0.5 atm, respectively. The total pressure of the mixture at the same temperature is
(a) 0.96 atm
(b) 1.02 atm
(c) 1.64 atm
(d) 1.25 atm

Dear student,

1 atm = 76cm of Hg = 760 torr 

Total Pressure is sum of individual partial pressures of all the gases.


Ptotal=3876+190760+0.5 atmPtotal=1.25 atm
Hope this helps,


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