Question

at room temperature Ammonia gas at 1 ATM pressure and HCL gas at pressure P ATM allowed to do if used through identical pinholes from opposite end of a glass tube of 1 metre length and of uniform area of cross section nh4cl is first formed at a distance of 60 cm from the enough and through which HCL gas was sending calculation the value of p

Answer 1

hlw mate here is ur ans

Answer 2

Answer:

Since the pressures of gases are different, and the temperature is constant, the rate at which molecules of the two gases diffuse is directly proportional to the pressure. This rate of diffusion is also directly proportional to the distance travelled by the gas. Hence

r  

1

​  

 (of HCI gas) at pressure P=60=kP/  

36.5

​  

 ……(i)

and r  

2

​  

 (of NH  

3

​  

) at 1 atm. Pressure P=40=k×1/  

17

​  

 ….(ii)

From (i) and (ii)

r  

1

​  

/r  

2

​  

=60/40=  

36.5

​  

 

kP

​  

×  

k×1

17

​  

 

​  

 

P=  

40

60

​  

×  

17

36.5

​  

 

​  

=2.197 atm