1. Gases exert pressure on the walls of a container. Explain why? 2. Cole pumps up a bicycle tire. Describe how the air pressure inside the tire changes as he pumps
3. Rachel places a plastic bottle of air in a pan of hot water. Predict and explain how the pressure inside the bottle changes

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.