# 24.2: Question Preview (ID: 5693)

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The 1st Law of Thermodynamics is a restatement of which of the following?
a) Newtons 1st Law of Motion
b) Law of Conservation of Energy
c) 3rd Law of Thermodynamics
d) Newtons 2nd Law of Motion

Besides adding heat, what is the other way to increase the internal energy of a system?
a) Increase temperature of the system
b) Decrease temperature of the system
c) Do work on the system
d)

If something is compressed (work done on it), what will happen to the internal energy of it?
a) Increases (Temperature increases)
b) Decreases (Temperature decreases)
c)
d)

Whenever heat is added to a system, it transforms to an equal amount of some other form of energy.
a) True
b) False
c)
d)

A group of particles or objects that you want to analyze is called a(n)
a) experiment
b) hypothesis
c) system
d) data set

If an object is expanded (work done by it), what will happen to the internal energy of it?
a) Increases (Temperature increases)
b) Decreases (Temperature decreases)
c)
d)

Which of the following is the mathematical expression of the 1st Law of Thermodynamics?
a) Efficiency = (Thot-Tcold) / Thot
b) Heat added = (increase in internal energy) + (external work done by the system)
c) F = ma
d)

Which of the following is heat added to a system NOT able to do?
a) Increase internal energy
b) Do external work
c) Decrease entropy
d)

The flow of heat is not directly related to the flow of energy.
a) True
b) False
c)
d)

The 1st Law of Thermodynamics states that the heat added to a system is equal to the increase in internal energy and the external work done by the system.
a) True
b) False
c)
d)

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