Answer to Question #175447 in Inorganic Chemistry for Deepanshu Rautela

Question #175447

Solid ammonium chloride undergoes sublimation on heating. In the vapour phase ammonium 

chloride decomposes to give NH3(g) and HCI(g). The following equilibrium is established. 

 NH4Cl(s) ⇌ NH3(g)+ HCl (g)

 What is the number of 

i) phases in the system, 

ii) components in the system, and 

 iii) degrees of freedom of the system?


1
Expert's answer
2021-03-26T05:41:17-0400

i) Two phases, that is, solid and gaseous phases

ii) Three components (NH4Cl, NH3 and HCl)

iii) The system is disordered because gases are given out during the sublimation. (Gases move randomly, hence the molecules are very free)


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