Gretchen wants to run a test to discover whether glass, copper, wood, or plastic conduct electricity. she sets up a circuit connecting a battery to a light bulb, with a small gap she will use to test the conductivity of the different substances. one at a time, she connects the circuit with the chosen test material, and records whether or not the light bulb comes on. the variables in this experiment are

what is the question?

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.