AP QUIZZES - AP TOPIC 9 Thermochemistry SET A
adriandingleschemistrypages.com


QUESTION 1. Which of the following has a negative value for a reaction that occurs spontaneously, that is, one that is a feasible reaction?

(A) Delta G
(B) Delta H
(C) Delta S
(D) Specific Heat Capacity
(E) Activation Energy

QUESTION 2. Which of the following is a measure of how the order or disorder in a reaction is changing?

(A) Delta G
(B) Delta H
(C) Delta S
(D) Specific Heat Capacity
(E) Activation Energy

QUESTION 3. In a reaction where entropy decreases, it is found that the reaction has a positive Delta G, but becomes spontaneous as the temperature decreases. Which of the following is true?

(A) Delta S and Delta H are both positive
(B) Delta S and Delta H are both negative
(C) Delta S is negative and Delta H is positive
(D) Delta S is positive and Delta H is negative
(E) Delta S and Delta G are both equal to zero

QUESTION 4. Consider the following reaction profiles. Which statement is true for profile X?



(A) The reaction is endothermic since the products have a lower enthalpy than the reactants
(B) The reaction is endothermic since the products have a higher enthalpy than the reactants
(C) The reaction is exothermic since the products have a lower enthalpy than the reactants
(D) The reaction is exothermic since the products have a higher enthalpy than the reactants
(E) Delta H for the reaction is zero

QUESTION 5. Which of the following statements is true of a reaction that is spontaneous at a given temperature that then becomes non-spontaneous at a higher temperature?

(A) Delta S and Delta H are both positive
(B) Delta S and Delta H are both negative
(C) Delta S is negative and Delta H is positive
(D) Delta S is positive and Delta H is negative
(E) Delta S and Delta G are both equal to zero




RELOAD THIS QUIZ

RETURN TO PREVIOUS QUIZ SET IN THIS TOPIC

MOVE ON TO NEXT QUIZ SET IN THIS TOPIC

RETURN TO AP QUIZ INDEX PAGE

adriandingleschemistrypages.com