What does the first law of thermodynamics state?
Thermo2 - Laws of Thermodynamics

Quiz
•
Science
•
12th Grade
•
Medium
alvin mortel
Used 1+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Energy can be created and destroyed
Energy cannot be created or destroyed, only transformed
Energy can be created but not destroyed
Energy is always conserved in isolated systems
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which equation represents the first law of thermodynamics?
ΔU=Q+W
ΔU=Q−W
ΔU=W−Q
ΔU=Q×W
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is an example of a process that obeys the first law of thermodynamics?
Perpetual motion machines
Conservation of mass
A closed system where heat added equals the work done by the system plus change in internal energy
An isolated system where heat is continuously produced without work
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The second law of thermodynamics states that:
Total energy is conserved in a system
Entropy of an isolated system always decreases
Entropy of an isolated system never decreases
Energy can neither be created nor destroyed
5.
MULTIPLE SELECT QUESTION
1 min • 1 pt
In an adiabatic process:
Heat is transferred to the surroundings
No heat is transferred to or from the system
Work is done on the system without changing its internal energy
Temperature remains constant
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the symbol for internal energy?
Q
W
U
H
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In the first law of thermodynamics, what does WWW represent?
Work done by the system
Work done on the system
Heat absorbed by the system
Heat released by the system
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