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 ...

Enthalpy change, represented by ΔH, is an important concept in thermodynamics and chemistry. It refers to the amount of heat absorbed or released during a chemical reaction or process. Understanding ...

A solution was made by dissolving a spatula of potassium nitrate into 50 cm 3 of water. The temperature changed from 20.4˚C to 18.7˚C. Calculate the enthalpy change for this reaction. To calculate the ...

Chemical reactions involve a change in energy, usually a loss or gain of heat energy. The heat stored by a substance is called its enthalpy (H). \(\Delta H\) is the overall enthalpy change for a ...