During the Paleocene-Eocene Thermal Maximum (PETM) 55.8 million years ago a significant amount of carbon was released into the ocean and atmosphere in a relatively short amount of time (less than 10,000 years). Based on the evidence from fossilized plant leaves in Bighorn Basin in Wyoming, which of the following happened in that region during the PETM? Select all that apply. A Rainfall decreased

B Air temperature increased

C Air temperatures decreased

D Plants with smooth-edged leaves which are better adapted to warmer climates became more abundant

E Rainfall increased causing the forest in the region to convert to a sub-tropical rain forest

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.