Rate Of Reactions Flashcards
(9 cards)
1
Q
Reaction rate
A
Change in concentration of reactants per unit time
2
Q
Heat of reaction
A
Is the energy absorbed or released in a chemical reaction
3
Q
Endothermic reaction
A
Is the reaction that absorbs heat
4
Q
Exothermic reaction
A
Is a reaction that releases energy.
5
Q
Activation energy
A
Is the minimum energy needed for a reaction to take place
6
Q
Activated complex
A
Is the unstable transition state from reactants to products
7
Q
Catalyst
A
Is a substance that increases the rate of chemical reaction without itself undergoing a permanent change
8
Q
Open and closed systems
A
Is the continuously interacts with its environment, while a closed system is isolated from its surroundings
9
Q
Reversible reaction
A
A reaction is reversible when products can be converted back into reactants
