How many atoms are there in .028g of fe?

Explanation:

Hello,

In this case, considering that for iron the grams are related with moles via the atomic mass and the atoms with moles via the Avogadro's number, we develop the following proportional analysis to compute the required atoms:

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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.