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What best describes the enthalpy of formation of a substance?
A. The energy needed to cause the substance to change phases
B. The energy change that happens when a substance forms from its
elements
C. The energy absorbed or released in a chemical reaction
D. The total thermal energy of all the molecules in the substance

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!!!!!!The answer is D!!!!!!
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Sagot :

What best describe the enthalpy of formation is that it is the energy change that happens when a substance forms from its elements

Option b

This goes to say that it is the heat change which occurred when one mole of substance is formed from its constituent elements.

What is enthalpy?

Enthalpy can be defined as the sum total of the internal energy and the product of the pressure and volume of a system

So therefore, the entalphy of formation is

the energy change that happens when a substance forms from its

elements

Learn more about enthalpy of formation:

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Answer:

The answer is B, The energy change that happens when a substance forms from its elements

Explanation: