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Entropy Regents

Authored by Charles Martinez

Chemistry

11th Grade

NGSS covered

Entropy Regents
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15 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When ∆ S is negative there is a(n)__________ in Entropy

increase

decrease

exothermic change

endothermic change

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

When ∆ S is positive there is a(n)__________ in Entropy

increase

decrease

exothermic change

endothermic change

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which reaction has the greatest increase in entropy?

2H20 (l) --> 2H2 (g) + O2 (g)

2H2O(g)--> 2H2(g) + O2(g)

H2O(g) --> H2O(l)

H2O(l) -->H2O(s)

Tags

NGSS.HS-PS3-4

NGSS.HS-PS1-4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which process is accompanied by a decrease in entropy?

boiling of water

condensing of water vapor

subliming of iodine

melting of ice

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Systems in nature tend to undergo changes toward

lower energy and less disorder

lower energy and more disorder

higher energy and less disorder

higher energy and more disorder

6.

MULTIPLE CHOICE QUESTION

1 min • 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

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which phase change represents a decrease in entropy?

solid to liquid

gas to liquid

liquid to gas

solid to gas

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