15
QuizMultiple Choice

Lab: Enthalpy — Unit test

Question 15 • Foothill-B Period-Chemistry-26/27B

According to the enthalpy diagram below, which of the following statements is true?

Question illustration
Answer
A
Arrows A and D represent the enthalpy of the intermediate chemical reactions.
B
Arrow C represents the enthalpy of the overall chemical reaction.
C
Arrow C indicates that the third intermediate reaction is exothermic.
D
Arrow B indicates that the second intermediate reaction is exothermic.