enthalpy (Meaning)
enthalpy (n)
(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
Synonyms & Antonyms of enthalpy
No Synonyms and anytonyms found
enthalpy Sentence Examples
- Enthalpy, a thermodynamic quantity, measures the total thermal energy of a system.
- Enthalpy change, represented by ΔH, quantifies the difference in enthalpy between the initial and final states of a reaction or process.
- Enthalpy is affected by temperature and pressure changes, as well as chemical reactions and phase transformations.
- The enthalpy of formation of a substance is the enthalpy change accompanying its formation from its constituent elements in their standard states.
- Enthalpy can be calculated using various methods, including calorimetry, thermochemical equations, and computational chemistry.
- In exothermic reactions, the enthalpy decreases, indicating the release of heat to the surroundings.
- In endothermic reactions, the enthalpy increases, signifying the absorption of heat from the surroundings.
- Enthalpy changes can be positive or negative, depending on whether the reaction is exothermic or endothermic.
- Enthalpy plays a crucial role in determining the feasibility and spontaneity of chemical reactions.
- The enthalpy diagram provides a graphical representation of enthalpy changes during a reaction, helping visualize the energy profile of the process.
FAQs About the word enthalpy
(thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
No synonyms found.
No antonyms found.
Enthalpy, a thermodynamic quantity, measures the total thermal energy of a system.
Enthalpy change, represented by ΔH, quantifies the difference in enthalpy between the initial and final states of a reaction or process.
Enthalpy is affected by temperature and pressure changes, as well as chemical reactions and phase transformations.
The enthalpy of formation of a substance is the enthalpy change accompanying its formation from its constituent elements in their standard states.