Write a chemical equation for the reaction that occurs in the following cell: cu|cu2+(aq)||ag+(aq)|ag. of the two metals, copper and silver, which is the anode and which is the cathode? label the oxidizing agent and the reducing agent.

Answer is given below.

Explanation:

Anode is that electrode where oxidation occurs. Cathode is that electrode where reduction occurs.

In cell representation, half cell present left to salt-bridge notation is anodic system and another half cell present right to salt-bridge notation is cathodic system.

So anode is Cu and cathode is Ag.

oxidation:

[reduction: ]

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chemical equation:

Oxidizing agent is that species which takes electron from another species. Here takes electron from Cu. Hence  is the oxidizing agent.

Reducing agent is that species which gives electron to another species. Here Cu gives electron to . Hence Cu  is the reducing agent.

definition

                    entropy is a measure of the randomness or the extent of disorder of a chemical process.

                      enthalpy is a measure of the heat change of a reaction occurring at a constant pressure.

measurement units:

                        entropy is measured in joule per kelvin (jk⁻¹)   whereas enthalpy is measured in joule per mole (jmol⁻¹)

requirements:

                            entropy has no requirements or limits, and its change is measured by the division between the heat change of the chemical process and the temperature.

                              in contrast, enthalpy can only be related to the heat change of the reaction under standard conditions.