The first law of thermodynamics is expressed in the equation, $\Delta$H° = q + w.

Name: The first law of thermodynamics is expressed in the equation, $\Delta$H° = q + w.
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The first law of thermodynamics is expressed as $\Delta U = q + w$, where $\Delta U$ is the change in internal energy, $q$ is heat added to the system, and $w$ is work done on the system. $\Delta H$ represents enthalpy change, not internal energy.

The First Law of Thermodynamics Is Expressed in the Equation Δ\DeltaΔ

The First Law of Thermodynamics Is Expressed in the Equation $\Delta$