WorksheetsEndothermic & Exothermic Processes
Total questions: 26
Worksheet time: 24mins
Calculate ΔT when a substance goes from 10*C to 75*C
-65*C
75*C
10*C
65*C
What type of reaction is this?
Endothermic
Exothermic
Allergic
What type of reaction is this?
Endothermic
Exothermic
Allergic
Ice cream melting is an example of an __________ process.
endothermic
exothermic
Sweating is an __________________ process because heat is released.
endothermic
exothermic
When heat flows from system to the surroundings that is an example of an ________________ process.
exothermic
endothermic
The law of conservation of energy states that
in any chemical or physical change, energy cannot be created or destroyed, only changed in form.
heat changes occur during chemical and physical changes.
energy is the capacity to do work or to supply heat
there are two types of energy, kinetic and potential
The diagram represents two solids and the temperature of each. What occurs when the two solids are placed in contact with each other?
Heat energy flows from solid A to solid B. Solid A decreases in temperature
Heat energy flows from solid A to solid B. Solid A increases in temperature
Heat energy flows from solid B to solid A. Solid B decreases in temperature.
Heat energy flows from solid B to solid A. Solid B increases in temperature.
Exothermic reaction is where heat is __________ to the surrounding
taken in
absord
released
Is this reaction endothermic or exothermic?
Consider the reaction: 2 H2O + energy --> 2H2 + O2
exothermic because releasing energy
exothermic because absorbing energy
endothermic because absorbing energy
endothermic because releasing energy
Does breaking bonds require energy, release energy, or not involve energy at all?
requires energy to break
releases energy when broken
No energy involved
How much activation energy is needed for this reaction?
300 KJ
500 KJ
400 KJ
100 KJ
Are the products or reactants of this reaction storing more energy in their chemical bonds?
Both storing the same
No way to tell
Products
Reactants
What type of reaction is this?
Exothermic
Endothermic
Energy Producing
No way to tell
How can you tell this reaction is exothermic: MgO + CaS ----> CaO + MgS + 200 KJ
Energy is written on the products side
Energy is being released
Less energy is stored on product side
All of these tell me
