What does `Delta H= q_(p)` refers to?

Explanation

To understand what `Delta H = Qp` refers to, we can break it down step by step:

### Step 1: Understanding the Terms
- **Delta H (ΔH)**: This represents the change in enthalpy of a system. Enthalpy (H) is a thermodynamic quantity that is a measure of the total heat content of a system.
- **Q (heat)**: This denotes the heat exchanged in a process.
- **P (pressure)**: The subscript "p" indicates that the heat exchange occurs at constant pressure.

### Step 2: The Concept of Enthalpy
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