Which name describes a three-carbon alkane? o pentane o methane o butane o propane o heptane

Propane

Explanation:

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IUPAC rules for organic chemistry nomenclature states that depending on the number of carbon atoms in the molecule we use standardized prefixes and suffixes. In particular, a three-carbon alkane is made up of three carbon single-bonded atoms, in such a way, the suitable prefix for three carbons is "prop". Now, as the statement is referring to an alkane, we use the suffix "ane" which stands for the presence of just single bonds among carbons. It means that the correct name of such alkane is propane whose structure is shown on the attached picture.

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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 cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.