[Unit 4.1] | Endothermic & Exothermic Reactions Flashcards
1
Q
What is thermochemistry?
A
The study of heat changes during reactions.
2
Q
What is the energy change of an exothermic reaction and what is an example of an exothermic reaction?
A
• Overall loss of heat energy after a reaction.
• Neutralising an acid gives off heat as the reaction proceeds.
3
Q
What is the energy change after an endothermic reaction and what is an example of an endothermic reaction?
A
• Overall intake of heat energy.
• The breakdown of Limestone into Lime and Carbon Dioxide needs a heat input to proceed.
4
Q
What unit is used to measure an energy change?
A
kJ Mol⁻¹
