Endo and Exothermic Reactions Flashcards
(9 cards)
1
Q
Exothermic reactions - energy transfer
A
Transfer energy to the surroundings leading to an increase in the temp of surroundings
2
Q
Endothermic reactions - energy transfer
A
Takes in thermal energy from the surroundings leading to a decrease in temp of surroundings
3
Q
What is the transfer of thermal energy during a reaction called
A
Enthalpy
4
Q
Enthalpy symbol
A
ΔH
5
Q
What is the ΔH of a endo reaction
A
Positive
6
Q
What is the ΔH of a exo reaction
A
Negative
7
Q
Activation energy (Ea)
A
Minimum energy that colliding particles must have to react
8
Q
Is bond breaking endo or exo
A
Endo
9
Q
Is bond making endo or exo
A
Exo
