electrochemistry Flashcards
What is the use of salt bridge in Galvanic cell?
To maintain the electric neutrality of the solution and complete the circuit.
How is electrode potential formed?
Active metals release positive metal ions into the solution and electrons remain on the rod. Hence, potential difference is created at the interface of solution and rod. Less active metals attract metal ions.
What is Daniell cell?
An electrochemical cell where Zn is the anode and Cu is the cathode.
What are Faraday’s laws?
The amount of chemical reaction during electrolysis is directly proportional to the amount of electricity passed through the electrolyte.
The amount of different substances liberated by same quantity of electricity is directly proportional to their chemical equivalent weights.
What is sign for Ecell for spontaneous reaction?
Positive. It is 0 at equilibrium.
What is specific conductivity?
