Question

4 gram of O2 and 2 gram H2 are filled at 0°C in a flask of 0.84 Liter capacity. What would be the total pressure of the mixture at STP?​

Answer 1

Answer:

Given:

V = 1L

T = 273K

Let us find the Partial pressure of O2.

No. of moles = 4/32 =0.125 moles

P1= nRT/v =0 .125x0.082 x 273/1 =2.80 atm

Now let us find the partial pressure of H2.

P2 = nRT/v =1 x 0.082 x 273/1 =22.386 atm

Total pressure of the mixture = 2.80 + 22.38 =25.18 atm