What is the enthalpy of formation of the most stable form of an element in its standard state ?

Explanation

To determine the enthalpy of formation of the most stable form of an element in its standard state, we can follow these steps:

### Step 1: Understand the Concept of Enthalpy of Formation
The enthalpy of formation (\( \Delta H_f \)) is defined as the heat change that results when one mole of a compound is formed from its elements in their standard states.

### Step 2: Identify the Most Stable Form of the Element
The most stable form of an element in its standard state is the form that is most commonly found in nature at standard conditions (1 atm pressure and 25°C). For example, for carbon, the most stable form is graphite.

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