REGULAR QUIZZES - REGULAR TOPIC 12 Thermochemistry SET E
REGULAR Quizzes - REGULAR TOPIC 12 Thermochemistry SET E.
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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
) produces how many moles of products?
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?
+ 0.5 O
+ 0.5 O
(E) None of the above
QUESTION 4. The standard enthalpies of combustion of methylbenzene (C
), Carbon and Hydrogen are -3910, -394 and -286 kJmol
respectively. Calculate the standard enthalpy of formation of methylbenzene in kJmol
QUESTION 5. A metal has a specific heat capacity of .899 Jg
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
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