10
QuizMultiple Choice

Enthalpy of Reaction

Question 10 • Foothill-B Period-Chemistry-26/27B

Consider the following enthalpy diagram and enthalpies of intermediate and overall chemical reactions.Which of the following statements is true?

Question illustration
Answer
A
The overall chemical reaction is exothermic.
B
There are two intermediate reactions in this system.
C
The third intermediate reaction is endothermic.
D
The longest arrow represents the overall chemical reaction.