3.1.4 ENERGETICS, A LEVEL CHEMISTRY, AQA / STUDY GUIDE / EXPERT STRATEGIES, REVIEW OF KEY QUIZZES, AND PRACTICE QUESTIONS FOR GUARANTEED SUCCESS.

3.1.4 ENERGETICS, A LEVEL CHEMISTRY, AQA /
STUDY GUIDE / EXPERT STRATEGIES, REVIEW OF
KEY QUIZZES, AND PRACTICE QUESTIONS FOR
GUARANTEED SUCCESS.
Terms in this set (68)

What is enthalpy change? Heat energy transferred in a reaction at constant pressure



What are standard 100kPa and stated temperature (normally 25 degrees celcius)
conditions for enthalpy
change?

What values of deltaH do Negative (less than 0)
exothermic reactions have?



What values of deltaH do Positive (more than 0)
endothermic reactions
have?

What do exothermic Give out energy
reactions do with energy?

What do endothermic Absorb energy
reactions do with energy?

Are oxidation reactions endo Exothermic
or exothermic?

Is combustion endo or Exothermic
exothermic?

, Are thermal decomposition Endothermic
reactions endo or
exothermic?


Is photosynthesis endo or Endothermic
exothermic?


What happens to reactant They are broken
bonds?

What happens to product They are formed
bonds?

Which bonds are broken: Reactant
reactant or product bonds?



Which bonds are formed: Product
reactant or product bonds?



Is energy taken in or Taken in
released when you break
bonds?

Is bond breaking endo or Endothermic
exothermic?

What values of deltaH Positive (more than 0)
does bond breaking
have?

How does bond breaking It takes more energy to break
energy change as the bond
strength increases?

Is energy taken in or Released
released when you make
bonds?

Is bond making endo or Exothermic
exothermic?