Which statement about the relationship between laws, hypotheses, and theories is true? a. laws that remain true over an extended period of time are considered theories. b. a theory that holds true for a long time is considered a law. c. if a law is not contradicted after a lot of testing, it may be considered a hypothesis. d. if a hypothesis is not contradicted after a lot of testing, it may be considered a law.

D. If a hypothesis is not contradicted after a lot of testing, it may be considered a law.

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.