Enthalpy is an essential concept in thermodynamics that characterizes the total energy of a system. The change in enthalpy (ΔH) is crucial for understanding various chemical reactions and physical ...

The standard enthalpy change, commonly represented by ΔH°, is a measure of the amount of heat absorbed or released during a chemical reaction under constant pressure at a reference temperature, ...

Thermodynamics Research Center, Applied Chemicals and Materials Division, National Institute of Standards and Technology, 325 Broadway, Boulder, Colorado 80305-3337, United States *(E.P.) E-mail: ...

Aldehydes are important intermediates and products in a variety of combustion and gas-phase oxidation processes, such as in low-temperature combustion, in the atmosphere, and in interstellar media.

Gas phase standard state (298.15 K, 1 atm) structures, enthalpies of formation, and ionization energies (IEs) were calculated at the G4MP2 composite method level of theory for the parent and binary ...

Gas phase (298.15 K, 1 atm) enthalpies of formation were calculated at the Gaussian-4 (G4) level of theory using the atomization energy approach for the proposed high energy materials ...

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