Chemical Energy Flashcards
1
Q
What is enthalpy change?
A
The difference in energy between reactants and products
2
Q
Why are chemists interested in enthalpy changes for industrial processes?
A
Highly exothermic reaction - may require specialist reaction vessels to contain reaction
Highly Endothermic reaction - may require expensive insulation to contain the heat all very costly
3
Q
What is enthalpy if combustion
A
Heat energy given out when one mole of a substance completely burns in oxygen
4
Q
What type of reaction is an enthalpy of combustion reaction?
A
Exothermic
5
Q
Describe some experimental concerns from enthalpy of combustion
A
Heat loss
Not all fuel completely combusts
