Q. Why is copper sulphate added
to water?
(a) To decrease the temperature of
the solution.
(b) To increase the conductivity.
(c) To decrease the conductivity.
(d) To increase the temperature of the solution.
Answers
Answer:
To increase the conductivity.
Hope it helps you and others!!!!
1.The solubility of copper sulfate is temperature-dependent, and increasing the water temperature encourages more salts to dissolve, resulting in increased concentrations.
2.It will also increase the conductivity of your solutions tremendously, because hydrogen ions are extremely mobile. The solubility of copper sulfate decreases with increasing sulfuric acid concentration, so don't add too much acid. Two things are very important in electrochemistry.
3.In metals, conductivity is due to movement of free electrons. When temperature increases, the vibration of metal ions increases. This results in increase in resistance of metal and hence, decrease in conductivity.
4.Copper sulfate (also spelled "sulphate") is a brilliant blue salt which readily dissolves in water. The solubility of copper sulfate is temperature-dependent, and increasing the water temperature encourages more salts to dissolve, resulting in increased concentrations.