contestada

if equal amounts of helium and argon are placed in a porous container and allowed to escape, which gas will escape faster and how much faster?

A: Argon is 3.16x faster
B: Helium is 0.316x faster
C: Argon is 0.316x faster
D: Helium is 3.16x faster

Respuesta :

Answer:

B: Helium is 0.316x faster

Oseni

If equal amounts of helium and argon are placed in a porous container and allowed to escape, helium will diffuse 3.16x faster than argon.

According to Graham's law of diffusion of gases, the rate of diffusion of a gas is inversely related to the square root of its molecular weight.

Mathematically, when two gases are being compared;

            r1/r2 = √m2/√m1

Where r1 = diffusion rate of gas 1, r2 = difussion rate of gas 2, m1 = molar weight of gas 1, and m2 = molar weight of gas 2.

Molar weight of helium = 4

Molar weight of argon = 39.9

Hence,

              r helium/r argon = √39.9/√4

                                      = 6.317/2

                                        = 3.16

Therefore, 3.16 x r argon = r helium.

In other words, helium will diffuse 3.16x faster than argon.

More on diffusion rate of gases can be found here: https://brainly.com/question/2967915