Amolecule of chlorine has atoms of the same element, and a molecule of carbon dioxide has different kinds of atoms. based on this information, chlorine is and carbon dioxide is .

Chlorine is an element and carbon dioxide is a compound

Based on the information, chlorine is an element while carbon dioxide is a compound.

Element:

              The element is a molecule which contains two or more same atoms. As in the case of Cl2 molecule, it has two chlorine atoms.

Compound:

                   The compound is a molecule which contains two or more atoms of different types. As in the case of CO2, it contains carbon and oxygen atoms which are two different atoms.

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.

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