(c) Two of the elements in chalcopyrite are the metal, copper, and the non-metal, sulphur. sulphur=non-metal
These have different properties. Copper is an excellent conductor of electricity and is
malleable. Sulphur is a poor conductor and is not malleable, it is brittle. Explain, in
terms of their structures, why this is so.
difference in electrical conductivity?

difference in malleability?

3

explanation:

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.