What is entropy in thermodynamics?

Entropy in Thermodynamics

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University
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Medium
Nur Hamid
Used 1+ times
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Entropy is a measure of energy in a system.
Entropy is a measure of temperature in a system.
Entropy is a measure of pressure in a system.
Entropy is a measure of disorder or randomness in a system.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is entropy related to the second law of thermodynamics?
Entropy is related to the second law of thermodynamics by indicating the direction in which natural processes occur, towards increasing disorder or randomness.
Entropy decreases as per the second law of thermodynamics
Entropy is unrelated to the second law of thermodynamics
Entropy is a constant value in the second law of thermodynamics
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula to calculate the change in entropy for a reversible process?
ΔS = ∫(dQ - T)
ΔS = ∫(dQ + T)
ΔS = ∫(dQ / T)
ΔS = ∫(dQ * T)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Discuss the role of entropy in heat transfer processes.
Entropy influences the direction of heat flow from high to low temperature areas, increasing the overall entropy of the system and the universe.
Entropy decreases as heat flows from high to low temperature areas
Entropy has no impact on heat transfer processes
Entropy only affects solid materials in heat transfer
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A process is considered irreversible when
Sgen = 0
Sgen < 0
Sgen ~ 0
Sgen > 0
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In which region, does this equation apply: s=sf+xsfg
A
B
C
D
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
The entropy-change and isentropic relations of ideal gas can be relate by using
Approximate analysis
Exact analysis
Incompressible analysis
Compressible analysis
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