Enthalpy example sentences

"Enthalpy" Example Sentences

1. The enthalpy of fusion for ice is 6.01 kJ/mol.
2. The enthalpy change of a reaction can be determined using calorimetry.
3. Increasing the temperature of a substance will increase its enthalpy.
4. The standard enthalpy of formation for CO2 is -393.5 kJ/mol.
5. Endothermic reactions have a positive enthalpy change.
6. The enthalpy of a system that releases heat is negative.
7. Bond dissociation enthalpies are used to measure the strength of chemical bonds.
8. The enthalpy of combustion for propane is -2220 kJ/mol.
9. Enthalpy is a state function, meaning it is independent of the path taken to achieve that state.
10. The enthalpy of vaporization for water is 44.0 kJ/mol.
11. The enthalpy of a reaction can be calculated by subtracting the enthalpy of the reactants from the enthalpy of the products.
12. Changes in enthalpy can be used to predict the direction of a reaction.
13. The standard enthalpy of reaction is the enthalpy change for a reaction under standard conditions.
14. Hess's law states that the enthalpy change of a reaction is independent of the pathway between the initial and final states.
15. The enthalpy of formation for H2O is -285.8 kJ/mol.
16. The enthalpy of a system is the sum of its internal energy and the product of its pressure and volume.
17. Adiabatic processes have zero enthalpy change.
18. The enthalpy of a system that absorbs heat is positive.
19. The enthalpy of solution is the enthalpy change when a solute is dissolved in a solvent.
20. The enthalpy of reaction for the combustion of methane is -890 kJ/mol.
21. Enthalpy is often used in thermodynamic calculations and analyses.
22. The enthalpy of a system is a measure of its heat content.
23. The enthalpy of the reaction is negative, indicating an exothermic process.
24. The enthalpy of mixing is the enthalpy change when two substances are combined.
25. Hess's law can be used to calculate the enthalpy change of a reaction even if it cannot be carried out experimentally.
26. The enthalpy of neutralization is the enthalpy change when an acid and a base react to form a salt and water.
27. The enthalpy of sublimation is the enthalpy change when a solid goes directly to a gas.
28. The enthalpy of the reaction can be calculated from the enthalpies of formation of the reactants and products.
29. The enthalpy of activation is the minimum energy required to initiate a chemical reaction.
30. The enthalpy of reaction can be expressed as the difference between the enthalpies of the products and reactants.

Common Phases

1. Enthalpy change;
2. Enthalpy of reaction;
3. Enthalpy of formation;
4. Enthalpy of combustion;
5. Enthalpy of fusion;
6. Enthalpy of vaporization;
7. Standard enthalpy of formation;
8. Standard enthalpy of reaction;
9. Enthalpy of solution;
10. Enthalpy of mixing.