3 A solution of ethanedioic acid was prepared by dissolving 1.01 g of the acid in
water and making the volume up to 250 cm in a volumetric flask. A 25.0 cm
sample of this solution was titrated against NaOH and required 18.40 cm NaOH
for neutralisation.
(COOH)2 + 2NaOH —— (COONa)2 + 2H2O
Calculate the number of moles of ethanedioic acid in 1.01 g.
a

the dependant variable is spilled water

the independent is the heat

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.