The atomic emission spectra of a sodium atom on earth and of a sodium atom in the sun would be

Missing question:

A the same

B different from each other

C the same as those of several other elements

D the same as each other only in the ultraviolet range.

Answer is: A. the same.

Differente gravity or no atmosphere on Sun don't affect emission spectra of elements.

Emission spectrum of a chemical element is the spectrum of frequencies emitted due to an atom making a transition from a high energy state to a lower energy state. Each element's emission spectrum is unique.

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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