
Endothermic Reactions and Energy Diagrams

Interactive Video
•
Chemistry, Science, Physics
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main focus of the video introduction?
Describing the living room setup
Discussing the grocery store visit
Explaining energy diagrams
Introducing the second law of thermodynamics
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an endothermic energy diagram, how do the energy levels of products and reactants compare?
Energy levels are not compared
Products have less energy than reactants
Products have more energy than reactants
Products and reactants have equal energy
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the Greek letter Sigma represent in the context of energy diagrams?
The difference in energy
The sum of heat of formations
The activation energy
The change in temperature
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is Delta H calculated using Hess's Law?
By subtracting the energy of reactants from products
By adding the energy of reactants and products
By dividing the energy of products by reactants
By multiplying the energy of reactants and products
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the standard conditions for calculating Delta H?
Room temperature and variable pressure
100 degrees Celsius and 2 atmospheres
25 degrees Celsius and 1 atmosphere
0 degrees Celsius and 1 atmosphere
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which reaction is identified as the most exothermic in the video?
All reactions are equally exothermic
Reaction 3
Reaction 1
Reaction 2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Delta H value for the most exothermic reaction discussed?
-25 kilojoules
-50 kilojoules
0 kilojoules
50 kilojoules
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