8. Thermochemistry
Endothermic & Exothermic Reactions
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ANSWERS OPTIONS
A
a, c, e
B
b, d, f
C
c, d, f
D
b, d, e
E
a, b, e
Which of the following statements are true?
a. For an exothermic reaction, ΔH > 0.
b. For an endothermic reaction, ΔH > 0.
c. An example of an exothermic process is the melting of ice.
d. An example of an exothermic process is combustion.
e. ΔH < 0 when energy is transferred (as q) from the system to the surroundings.
f. ΔH < 0 when energy is transferred (as q) from the surroundings to the system.