Use what you learned from the PhET Simulation on the Properties of Gases and from the 3.04 Gas Laws lab to answer the following question. Write a paragraph! Scenario (not a real experiment): Start with a balloon at room temperature, measure the diameter. Then put it into hot water and measure the diameter. Then put it into ice water and measure the diameter.

Explain why a balloon in hot water expands but a balloon in ice water shrinks. Be sure to include the following information:

(1) the number of molecules

(2) the temperature

(3) energy of the molecules

(4) the pressure

(5) the volume

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.