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WorksheetsAn Introduction to Thermochemistry
Total questions: 20
Worksheet time: 46mins
The minimum energy particles must have to react is the
acting energy
active energy
activation energy
Which letter shows the activation energy
A
B
C
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 is the Heat of Reaction ΔH for this reaction?
-200 KJ
200 KJ
400 KJ
-300 KJ
When heat flows from system to the surroundings that is an example of an ________________ process.
exothermic
endothermic
The potential energy diagram of a reaction is shown. Which statement below is correct relating to this reaction?
#1 represents the enthalpy change for this exothermic reaction.
#2 represents the enthalpy change for this endothermic reaction.
#3 represents the enthalpy change for this endothermic reaction.
#4 represents the enthalpy change for this exothermic reaction.
2N2 + 3H2 --> 2NH3 + 46 kJ
How much energy would be produced if only 1 mol of nitrogen was reacted?
H2O (l) + 44.0 kJ --> H2O (g)
How much energy is required to produce each mole of chlorine?
Is this reaction endothermic or exothermic?
Is this reaction endothermic or exothermic?
How many moles of P4 must be reacted to produce 5905 kJ of energy? P4 + 6Cl2 --> 4PCl3 + 2439 kJ
2
1
4
8
Refer the the following question: 2N2 + 3H2 --> 2NH3 + 46 kJ How much energy would be produced if 6 mol of hydrogen gas was reacted?
