What is enthalpy?
O the heat given off during an exothermic reaction
O the heat absorbed or released during a phase change
o the heat content of a system at constant pressure
o the heat absorbed during an endothermic reaction

Respuesta :

Answer: the heat content of a system at constant pressure.

Explanation:

Enthalpy is defined as the heat content of a system at constant pressure.

It is the heat absorbed or released during a reaction at constant pressure,denoted as ΔH.

Enthalpy is the heat capacity of a system at equilibrium pressure.

Define enthalpy.

The heat absorbed and evolved by a system at equilibrium pressure is equivalent to its enthalpy change.

It's a state function that's employed in a variety of measurements in chemical, microbiological, and physical systems under constant pressure, that the huge ambient environment readily provides.

Enthalpy is the heat capacity of a system at equilibrium pressure.

Find out more information about pressure here:

https://brainly.com/question/4631715?referrer=searchResults