Entropy and Enthalpy
Quiz
•
Chemistry
•
11th Grade - University
•
Practice Problem
•
Hard
+3
Standards-aligned
Charles Martinez
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The __________ law of thermodynamics states that entropy is always increasing.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Temperature is a measure of average _________ energy of individual atoms.
heat
potential
mechanical
kinetic
Tags
NGSS.HS-PS3-2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ΔH value in an endothermic reaction is a positive number.
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Which phase of matter has the greatest motion and least orderly arrangement?
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
The equation that relates enthalpy, temperature and entropy is
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
For which of these processes is the value of ΔH expected to be positive?
1. The temperature increases when calcium chloride dissolves in water.
2. Steam condenses to liquid water
3. Water boils
4. Dry ice sublimates
Tags
NGSS.HS-PS3-4
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
6. The formation ½ A2 + 2 B2 + C --> CAB4 has an enthalpy of formation of -104 kJ and a change in entropy of -60.8 J/K at 30 °C. What is the free energy and spontaneity of the reaction?
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-1
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