Complex sentence: The enthalpy is the preferred expression of system energy changes in many chemical, biological, and physical measurements, because it simplifies certain descriptions of energy transfer, as it is not affected by energy transferred to the environment through the expansion of the system under study.
Split into simpler sentences: The enthalpy is the preferred expression of system energy changes in many chemical, biological, and physical measurements, because it simplifies certain descriptions of energy transfer. This is because enthalpy is not affected by energy transferred to the environment through the expansion of the system under study.