Answer to Question #78478 in General Chemistry for Chloe Lozano

Question

Which of the following statements is true?

A. Activation energy is the energy necessary to start a chemical reaction.
B. The gaseous state has the highest amount of entropy associated with it.
C. Enthalpy of formation is the change in enthalpy of a formation reaction.
D. The standard enthalpy of the formation of an element in its elemental form is 0.
E. All of the Above

Answer 1

Answer
Activation energy is the minimum amount of energy that is needed to start a chemical reaction.
The gaseous state has the highest amount of entropy associated with it.
This equation essentially states that the standard enthalpy change of formation is equal to the sum of the standard enthalpies of formation of the products minus the sum of the standard enthalpies of formation of the reactants.
The standard enthalpy of formation for an element in its standard state is Zero.

ANSWER E