Define the chemical term feasible.

Give an example of a chemical reaction involving at least one compound as a reactant and explain how to calculate the enthalpy change of this reaction (remember to take note of the stoichiometry of the reaction)?
 

Explain how to calculate the standard cell potential, ${\mathrm{E}}_{\mathrm{cell}}^{⊝}$, for the cell reaction:

${\mathrm{Fe}}^{3+}+{\mathrm{I}}^{-}\to {\mathrm{Fe}}^{2+}+\frac{1}{2}{\mathrm{I}}_2$.

Refer to Figure below. If there are four molecules in the gas jar on the left, how many ways of arranging the molecules are there when the partition is removed?