
1/17 Entropy
Quiz
•
Chemistry
•
11th Grade
•
Medium
Philip Tran
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14 questions
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1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which phase of matter has the greatest motion and least orderly arrangement?
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which phase change represents a decrease in entropy?
solid to liquid
gas to liquid
liquid to gas
solid to gas
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Given the change of phase:
CO2(g) —> CO2(s)
As CO2(g) changes to CO2(s), the entropy of the system
decreases
increases
remains the same
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Entropy of a system increases when a reaction increases the number of particles.
True
False
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which of these reactions shows a DECREASE in entropy?
CaCO3(s) → CaO(s) + CO2(g)
3O2(g) → 2O3(g)
2NH3(g) → 3H2(g) + N2(g)
C6H6(l) → C6H6(g)
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Which reaction has a +ΔS ?
AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq)
H2O(g) + CO2(g) → H2CO3(aq)
H2(g) + I2(g) → 2Hl(g)
C2H2O2(g) → 2CO(g) + H2(g)
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
Describe the change in entropy for this reaction:
C (s) + H2O (g) → CO (g) + H2 (g)
increase in entropy, because the number of particles increases
decrease in entropy, because the number of particles increases
decrease in entropy, because gases have higher entropy than solids
increase in entropy, because gases have higher entropy than solids
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