Class 12th "Solutions" Chapter no 02

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[A]   Factors affecting Solubility :

•  Nature of solute and solvent. 
•  Polarity of the solvent. 
•  Temperature of solvents.
•  Pressure. 
•  Size of particles. 

[B]   Determination of Solubility :

•  Making of saturated solution. 

•  Evapourization. 


•  Calculation. 


[C]   Solubility Curves : किसी लवण(salt) की विलेयता (solubility) पर ताप (temperature) के प्रभाव (effect) को प्रायः एक वक्र (curve) द्वारा भी व्यक्त किया जा सकता है जिसे solubility Curves (विलेयता वक्र) कहा जाता है। 

Generally these are two types of solubility Curves :

(a)  Continuous Solubility Curves : This type of Curves have not sharp break as called continuous solubility curves. 
Example :  NaCl, KCl, KClO3, NaNO3, etc. 

(b)  Discontinuous Solubility Curves :
It have the quality of sudden directional changes is known as discontinuous Solubility curves. 
Example : Na2SO4, , NH4NO3, 

•   Solubility Curves of some common salts : 


Practice Questions : 

1. Write the factors which effecting the solubilty. 

2. How many types of solubility curves. Explain it. 

3. Draw the solubility curve of NaCl & KNO3. 



                          Thankyou  ! 

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