In an electrolytic solution the density of CuSO4 decreases or increases or remains constant?
Actually it is an onjective question of a competitive exam..i've copied exactly the same question..
Ans : decreases beacuse Cu is deposited at cathode
Well, in an electrolytic solution, the density of CuSO4 remains constant. But hey, don't worry, it's not like the copper sulfate is trying to watch its weight or anything. It's just content being its good ol' consistent self!
To determine whether the density of a CuSO4 electrolytic solution decreases, increases, or remains constant, we need to consider some factors. The density of a solution is influenced by the concentration and temperature.
In the case of a CuSO4 electrolytic solution, it's important to note that CuSO4 is a salt that can dissociate into copper ions (Cu2+) and sulfate ions (SO4 2-). During electrolysis, when an electric current is passed through the solution, copper ions move towards the cathode (negative electrode) and get reduced to solid copper. The sulfate ions move towards the anode (positive electrode) and get oxidized, releasing oxygen gas and forming sulfuric acid.
Based on this process, we can make some observations:
1. Concentration: As copper ions get reduced and form solid copper, the concentration of CuSO4 in the solution decreases over time. This decrease in concentration generally results in a decrease in density.
2. Temperature: Typically, as temperature increases, the density of a solution decreases. However, in this case, the effect of temperature on the density is negligible compared to the change in concentration due to the electrolysis process.
Therefore, in an electrolytic solution of CuSO4, the density tends to decrease over time due to the reduction of copper ions at the cathode, causing a decrease in the concentration of the solution.