
Thermodynamics Concepts and Applications
Interactive Video
•
Chemistry
•
10th - 12th Grade
•
Practice Problem
•
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 first video in the thermodynamics series?
Atomic structure and periodic trends
Gibbs free energy, enthalpy, and entropy
Chemical kinetics and reaction rates
Electrochemistry and its applications
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What condition must be met for a reaction to be thermodynamically favorable?
Delta G must be greater than Delta H
Delta G must be positive
Delta G must be zero
Delta G must be negative
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is Gibbs free energy related to the equilibrium constant (Keq)?
A negative Delta G means Keq is less than one
A zero Delta G means Keq is less than one
A negative Delta G means Keq is greater than one
A positive Delta G means Keq is greater than one
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the definition of enthalpy?
The energy required to start a reaction
The measure of disorder in a system
The amount of heat per mole of a substance
The total energy of a system
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is true for an exothermic reaction?
Delta H is negative
Delta H is zero
Delta H is positive
Delta H is greater than Delta S
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to entropy when a solid changes to a gas?
Entropy decreases
Entropy remains constant
Entropy increases
Entropy becomes zero
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the number of moles affect entropy in a reaction?
More moles in products increase entropy
More moles in reactants decrease entropy
Fewer moles in products increase entropy
Fewer moles in reactants decrease entropy
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