Predicting Changes in Entropy

Quiz
•
Chemistry
•
12th Grade
•
Hard
+1
Standards-aligned
Charles Martinez
FREE Resource
17 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the symbol for entropy?
H
G
S
E
Tags
NGSS.HS-PS3-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which represents a decrease in entropy?
sublimation of CO2
boiling water
condensation of steam on cold glass
NaCl dissolving in water
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which change has a negative entropy change of the system?
ice melting
salt dissolving
water heating up
none of these
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following scenarios describes a process with a negative system entropy change?
Building a skyscraper
A clean room becomes cluttered
An igloo melting
Osmosis (I hope you know your Biology!)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of these have a DECREASE in system entropy?
CaCO3(s) → CaO(s) + CO2(g)
2NO2(g) → N2O4(g)
2NH3(g) → 3H2(g) + N2(g)
C6H6(l) → C6H6(g)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The entropy of the system will usually increase when
a molecule is broken into two or more smaller molecules
a reaction occurs that results in an increase in the number of moles of gas
a solid changes to a liquid
all of these
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ammonium nitrate dissolves in water. It is a spontaneous endothermic process because the system undergoes....
a decrease in enthalpy
an increase in entropy
an increase in enthalpy
a decrease in entropy
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