Leaves have specialized cells called guard cells. Guard cells will contract and relax which allows them to open and close pores in the leaf called stomata. When stomata are open, water is pulled up to the leaves and some water may escape. When stomata are closed, water remains still within the plant. Based on the description of guard cells and stomata, what internal and external conditions would most likely cause the stomata to be open? What caused the behavior of the plant in the diagram above?

dynamic equilibrium is the answer.

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.

the correct answer would be b) volume versus temperature, because they are also directly proportional.