WorksheetsEndothermic/Exothermic Reactions & Reaction Profiles
Total questions: 20
Worksheet time: 14mins
The minimum energy particles must have to react is the
acting energy
active energy
activation energy
A reaction profile shows....
the relative difference in temperature of reactants and products
the relative difference in amounts of reactants and products
the relative difference in energy of reactants and products
the relative difference in volume of reactants and products
Bond making is
Endothermic
Exothermic
Bond breaking is..
Endothermic
Exothermic
Which letter shows the activation energy
A
B
C
In a reaction the energy required to break bonds is less than the energy released when bonds are made. What type of reaction is this?
Exothermic
Endothermic
Is this showing an endothermic or an exothermic reaction?
Endothermic
Exothermic
Which letter shows the heat change?
A
B
C
D
E
Which letter represents the reactants?
A
B
C
D
E
Which letter represents the products?
A
B
C
D
E
Which letter represents the transition state?
A
B
C
D
E
What type of reaction occurs in a hand warmer?
exothermic
endothermic
Which of the following process is exothermic?
Candle was melting
A puddle evaporating
Dry ice (solid carbon dioxide) subliming to form gaseous carbon dioxide
Water freezing to form ice
What is the Heat of Reaction ΔH for this reaction?
-200 KJ
200 KJ
400 KJ
-300 KJ
