Exo And Endo Reactions, req PRAC Flashcards
1
Q
Req PRAC of variables that affect temp changes in reacting solutions
A
1) set up equipment
2) take temp of acid
3) add metal powder and stir
4) record highest temp the reaction mixture reaches
5) calculate temp change
6) repeat exp using different metal
2
Q
Mistakes and consideration
A
-should be a correlation between reactivity of metal and temp change
3
Q
Hazards and risks
A
Low risk of a corrosive acid damaging the experimenters eye, so use eye protection
4
Q
For bonds to be broken
A
The reacting particles must collide with sufficient energy
5
Q
What is activation energy
A
-Minimum amount of energy that particles must have for a reaction to take place
6
Q
What does a catalyst do the activation energy
A
Reduces activation energy
