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Sonam Rani posted an Question
June 16, 2021 • 18:29 pm
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- IIT JAM
- Chemistry (CY)
What is the degree of freedom of 0.1 n nacl solution
what is the degree of freedom of 0.1 N NaCl solution
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Gunjan Best Answer
for Aqueous NaCl solution degree of freedom is 1
Mam, aqueous NaCl soln means one phase and acc to phase rule, F=2-1+2=3 and since conc is fixed, we can say F=2 but how one mam?
hi sonam u are getting confused between two different equations........ look in ionic equilibria there are 2 types of equations... one is gibbs phase rule and other is reduced phase equation..... in single component systems gibbs phase rule is used i. e. Dof= C-P+2 ..... but in 2 component systems reduced phase equation is used ie. dof=C-P+1 .... here as NaCl solution means nacl +h2O which is a 2 component system (refer to binary phase diagram for better understanding) hence here u need to use reduced phase rule... i. e. dof=C-P+1= 2-2+1 =1 kindly inform me wheather you understood or not sonam?
Yes mam, I completely understood it... Thanku so much mam