Question

the enthalpy of formation for all elements in there standard states is ________​

Answer 1

Answer:

The standard enthalpy of formation of any element in its most stable form is zero by definition. (which is pronounced “delta H eff naught”). The standard enthalpy of formation of any element in its standard state is zero by definition.

Explanation:

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Answer 2

$\huge\green{\underline{Answer}}$

The enthalpy of formation for all elements in there standard states is zero by defination