Question

In 2 meter long open tube.NH3 and Hcl gases are inserted from opposite ends .At what distance from ammonia levels end do the gases meet to form white fumes ? Explain with details

Answer 1

Answer:

A white ring of NH

4

Cl appears first nearer to the HCl end. The rate of diffusion is inversely proportional to square root of molar mass. The molar mass of HCl (36.5 g/mol) is higher than the molar mass of ammonia (17 g/mol). Hence, the rate of diffusion of ammonia is higher than the rate of diffusion of HCl.

Hence, option A is correct.