1
Q
What is bond enthalpy?
A
The quantity of energy needed to break a particular bond in a molecule
2
Q
Why do endothermic reactions have a positive enthalpy change?
A
Because breaking the bonds requires energy
Chemistry - AS Level
flashcards
Decks in class (39)
# Cards
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EL 113
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EL 216
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EL 3 & 423
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EL 528
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EL 65
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EL 752
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EL 7 (part 2)48
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EL 840
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EL 913
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DF 19
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DF 23
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DF 32
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DF 42
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DF 513
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DF 623
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DF 79
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DF - Alkanes26
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DF - Alkenes19
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DF - Enthalpy Changes15
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ES 133
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ES 223
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ES 313
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ES 413
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ES 52
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ES 622
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ES 715
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ES Flashcards58
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ES - Redox1
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ES - Halogenalkanes6
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ES - Electron Structure11
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ES - Rates And Equilibris30
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OZ - Chemistry Of The Air16
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OZ - Periodicity16
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OZ - Structure And Bonding14
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Bond shapes7
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Flame colours8
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WM24
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WM54
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WM Flashcards17
