REGULAR QUIZZES - REGULAR TOPIC 12 Thermochemistry SET E
REGULAR Quizzes - REGULAR TOPIC 12 Thermochemistry SET E.
RELOAD
this page each time before re-taking and re-grading the quiz.
QUESTION 1. Hydrogen molecules have a bond enthalpy of 436 kJ per mole. What is the enthalpy change when 2 moles of hydrogen atoms are produced from a hydrogen molecule?
(A) +436 kJ
(B) -436 kJ
(C) +873 kJ
(D) -872 kJ
(E) None of the Above
QUESTION 2. The equation that represents the standard enthalpy of combustion of propane (C
3
H
8
) produces how many moles of products?
(A) 1
(B) 3
(C) 5
(D) 7
(E) 8
QUESTION 3. Which of the following equations represents BOTH the standard enthalpy of formation of zinc oxide, AND the standard enthalpy of combustion of zinc?
(A) Zn
(s)
+ 0.5 O
2(g)
==> ZnO
(s)
(B) Zn
(g)
+ 0.5 O
2(g)
==> ZnO
(s)
(C) Zn
(s)
+ O
(g)
==> ZnO
(s)
(D) Zn
(g)
+ O
(g)
==> ZnO
(s)
(E) None of the above
QUESTION 4. The standard enthalpies of combustion of methylbenzene (C
7
H
8
), Carbon and Hydrogen are -3910, -394 and -286 kJmol
-1
respectively. Calculate the standard enthalpy of formation of methylbenzene in kJmol
-1
.
(A) +3230
(B) +8
(C) -8
(D) -1136
(E) -4590
QUESTION 5. A metal has a specific heat capacity of .899 Jg
-1
K
-1
How much energy is required to raise the temperature of 2.00 kg of the metal by 80 K?
(A) 80 kJ
(B) 35.96 kJ
(C) 179800 kJ
(D) 143.84 J
(E) 143.84 kJ
RELOAD THIS QUIZ
RETURN TO PREVIOUS QUIZ SET IN THIS TOPIC
MOVE ON TO NEXT QUIZ SET IN THIS TOPIC
RETURN TO REGULAR QUIZ INDEX PAGE
