We have seen earlier that galvanic cells have a positive cell potential (negative Gibbs free energy) which makes them spontaneous. This means that, just like for any other process, the reverse reaction of any spontaneous redox reaction will be nonspontaneous … Read more
We have seen in the previous post that the cell potential depends not only on the type of the metal but also on the concentration of their electrolyte solutions. This is a cell under nonstandard conditions and its potential is … Read more
We have seen, in this chapter, that a positive standard cell potential (E°cell) indicates a spontaneous electrochemical reaction, and a negative sign corresponds to a nonspontaneous reaction. Now, recall from thermodynamics that we always referred to the Gibbs free energy … Read more
In the previous post, we talked about the Nernst equation which is used to calculate the cell potential under nonstandard conditions based on Eocell and the log of the reaction quotient. where Eo is the cell potential under standard … Read more
What is the Nernst Equation Used For? Nernst equation is used to calculate the cell potential under nonstandard conditions based on Eocell and the log of the reaction quotient. where Eo is the cell potential under standard conditions, n … Read more
Before discussing the standard cell potential, let’s remember that it applies to electrochemical cells. An electrochemical cell is a system where a redox reaction occurs between two cells that are connected by a wire. In an electrochemical cell, one component … Read more
In the previous post, we talked about nuclear binding energy, and discussed a graph with important implications for the use of nuclear processes as sources of energy: The key to predicting what types of nuclear reactions are going … Read more
In the previous post, we discussed the energy of nuclear reactions and the key point we learned was that nuclear reactions are associated with enormous amounts of energy because of the mass difference between the reactants and products. For example, … Read more
Nuclear reactions are associated with enormous amounts of energy. For example, the energy coming from the sun is a result of a nuclear reaction, the devastating power of nuclear bombs is also the output of nuclear reactions. So, … Read more
In a zero-order reaction, the rate of the reaction is independent of the concentration of the reactant. This can be seen in the differential rate law which shows how the rate of a reaction depends on the concentration of the … Read more
