This Chemistry SE 11 C quiz focuses on thermodynamics, exploring concepts like exothermic and endothermic reactions, enthalpy, and heat of reaction. It assesses understanding of energy changes in chemical reactions, crucial for students in advanced chemistry courses.
Hfinal < Hinitial ∆H < 0
Hfinal < Hinitial ∆H > 0
Hfinal > Hinitial ∆H > 0
Hfinal > Hinitial ∆H < 0
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Enthalpy of the system
Entropy of the system
Free energy of the system
Specific heat of the system
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H2 (g) + ½ O2 (g) → H2O (l) ΔH = -285.8 kJ
HgO (s) → Hg (l) + ½ O2 (g) ΔH = +90.7 kJ
4CO2(g) +6H2O(l) →2C2H6(g) +7O2(g) ΔH =+3120 kJ
SO2 (g) → S(s)+ O2 (g) ΔH = +296 kJ
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An endothermic reaction occurred.
A dehydration reaction occurred.
The water was originally warmer than the compound.
The beaker was contaminated by another compound.
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177.8 kJ
-177.8 kJ
−1029 kJ
−2236 kJ
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Heat of reaction
Heat of vaporization
Heat of condensation
Heat of sublimation
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