What is a thermochemical equation?
7.3 Thermochemical Equations

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Chemistry
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9th - 12th Grade
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Hard
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1.
FLASHCARD QUESTION
Front
Back
A thermochemical equation is a balanced chemical equation that includes the enthalpy change (ΔH) associated with the reaction.
2.
FLASHCARD QUESTION
Front
What does ΔH represent in a thermochemical equation?
Back
ΔH represents the change in enthalpy, indicating the heat absorbed or released during a chemical reaction.
3.
FLASHCARD QUESTION
Front
In the reaction C + O₂ → CO₂ + 60 kJ, what does the +60 kJ signify?
Back
The +60 kJ signifies that 60 kJ of heat is released when 1 mole of CO₂ is formed.
4.
FLASHCARD QUESTION
Front
How do you calculate the heat released when forming multiple moles of a product?
Back
Multiply the heat released for 1 mole by the number of moles formed.
5.
FLASHCARD QUESTION
Front
If 3 moles of CO₂ are formed in the reaction C + O₂ → CO₂ + 60 kJ, how much heat is released?
Back
180 kJ is released (60 kJ x 3 moles).
6.
FLASHCARD QUESTION
Front
What does a positive ΔT indicate about a reaction?
Back
A positive ΔT indicates that heat is being absorbed by the reaction.
7.
FLASHCARD QUESTION
Front
What does a negative ΔT indicate about a reaction?
Back
A negative ΔT indicates that heat is being released by the reaction.
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