feactures of endothermic reactions (C2) Flashcards
1
Q
Where is heat transferred from and to?
A
from surrounding to the reaction
2
Q
how is this indicated?
A
temperatures fall in surroundings
3
Q
What is more energy needed to do?
A
break reactant bonds
4
Q
What is less energy needed to do?
A
form new bonds
5
Q
examples
A
thermal decomposition & photosynthesis
6
Q
what is the change in energy?
A
negative (-ve)
7
Q
how is energy change calculated?
A
reactant bond energy - product bond energy
