Question

If 20g of the gas takes 50 sec for diffusion, then find the mass of a gas which takes 20 sec for diffusion let the molar mass of gas is 40gm

Answer 1

Answer:

Explanation:

CHEMISTRY

20 L of SO  

2

​  

 diffuses through a porous partition in 60 seconds. Volume of O  

2

​  

diffuse under similar conconditionsin 30 seconds will be :

Study later

ANSWER

The rate of diffusion is volume diffused per unit time and is inversely proportional to the square root of molar mass.

r  

′

 

r

​  

=  

V  

′

t

Vt  

′

 

​  

=  

M

M  

′

 

​  

 

​  

 

Here, r, V, t, and M are the rate of diffusion, the volume diffused, the time taken for diffusion and the molar mass of SO  

2

​  

 

and r', V', t' and M' are the rate of diffusion, the volume diffused, the time is taken for diffusion and the molar mass of O  

2 respectively.

Substitute values in the above equation

V   ×60  20×30

=  64 32

V   =14.14 L.

Hence, a volume of O  

2

​  

 diffused under similar conditions in 30 seconds will be 14.14 L.

So, the correct option is B