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Entropy
Entropy is a measure of ______
A
order
B
temperature
C
disorderliness
D
pressure
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Slide 1:
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Science
Secondary Education
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7 slides
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Items in this lesson
Entropy is a measure of ______
A
order
B
temperature
C
disorderliness
D
pressure
Slide 1 - Quiz
Which substance has higher entropy?
A
A
B
B
C
neither
D
both
Slide 2 - Quiz
Which of the following processes occurs with a decrease in entropy?
A
freezing of water
B
boiling water
C
sublimation of dry ice
D
dissolving salt in water
Slide 3 - Quiz
Assuming no change of state, why does the entropy of liquid water increase as it is heated?
A
The molecules get further apart during heating
B
The heating mechanism becomes more disordered.
C
There is greater random motion of molecules.
D
the molecules get closer together during heating.
Slide 4 - Quiz
Predict change in entropy ∆S for the following whether >0 or <0
1. CH3OH (l)------> CH30H (g)
2.C10H8 (l) ------> C10H8(s)
Slide 5 - Open question
Challenge:Comment on the sign of ∆system for the equation
Fe(s) + Zn^2+ (aq) ----> Fe^2+(aq)+ Zn (s)
Slide 6 - Open question
Slide 7 - Mind map
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