A) Relative lowering of vapour pressure
B) Lowering of vapour pressure
C) Vapour pressure of the solvent
D) All of the above
Correct Answer: D
Solution :
By Ostwald-Walker dynamic method, the relative lowering of vapour pressure, lowering of vapour pressure and vapour pressure of the solvent, all can be measured. In this method, the apparatus used, contains two' bulbs: bulb A contains solution and bulb B contains solvent. The loss of weight in bulb B gives the lowering of vapour pressure and total loss of weight in both the tubes gives the vapour pressure of the solvent and Relative lowering of vapour pressure \[=\frac{lowering\text{ }of\text{ }vapour\text{ }pressure}{vapour\text{ }pressure\text{ }of\text{ }solvent}\]
You need to login to perform this action.
You will be redirected in
3 sec
