C1 Part 2 Flashcards
1
Q
What does conservation of energy mean?
A
Energy that can only be transferred, not created or destroyed
2
Q
What is a exothermic reaction?
A
A reaction that increases heat to the surroundings causing a increase in temperature
3
Q
What is a endothermic reaction?
A
A reaction which absorbs heat from the surroundings causing a decrease in temperature
4
Q
What is a non-rechargeable cell?
A
A type of cell where reactions stop when one reactant is used up
5
Q
What is a rechargeable cell?
A
A type of cell where the chemical reactions can be reversed when a electric current is supplied
6
Q
What is a fuel cell?
A
A type of cell that makes electricity from reacting a fuel with O2
