Question

The rate of effusion of NH3 gas through a porous barrier is observed to be 3.47 x 10 mol/h. Under the same conditions, the rate of effusion of O2 gas would be mol/h.

Answer 1

of of Answer) We know that, according to Araham law, the rate of effusion a gaseous substance will be inversely proportional to the square root molar mass Mathematically, it can be expressed as rate of eppusion of x v My ..0 . rate of effusion of Y . Here given, rate of effusion of NH3 = 3.47 x 10 mol/h Molar mass of NH₃ = 17:031 gimol = MNHz Molar mass of es = 31.998 g/mol - Moz Now putting the above values in equation 10 we get rate of effusion of NH3 rate of effusion of 2 3.478 109 mollh rate of effusion of 2 -1.37 17031 or rate of effusion of O2 = 3.47 810 9 moelh 1.37 = 2.532 x109 meeld Но, 31.998 & The rate of effusion of Oz gas would be 2-532 x 10 mol/hr (Answer)