Question 1

Entropy increase dS of the system can be expressed as

Accepted Answer

A) ds=ds(due to external heat interaction)- ds(due to internal irreversibility) 
B) ds=ds(due to external heat interaction)+ds(due to internal irreversibility) 
C) ds=-ds(due to external heat interaction)- ds(due to internal irreversibility) 
D) ds=-ds(due to external heat interaction)+ds(due to internal irreversibility) 
A) ds=ds(due to external heat interaction)- ds(due to internal irreversibility) 
B) ds=ds(due to external heat interaction)+ds(due to internal irreversibility) 
C) ds=-ds(due to external heat interaction)- ds(due to internal irreversibility) 
D) ds=-ds(due to external heat interaction)+ds(due to internal irreversibility)

Question 2

The final temperatures of two bodies, initially at T1 and T2 can range from

Accepted Answer

A) (t1-t2)/2 to sqrt(t1*t2) 
B) (t1+t2)/2 to sqrt(t1*t2) 
C) (t1+t2)/2 to (t1*t2) 
D) (t1-t2)/2 to (t1*t2) 
A) (t1-t2)/2 to sqrt(t1*t2) 
B) (t1+t2)/2 to sqrt(t1*t2) 
C) (t1+t2)/2 to (t1*t2) 
D) (t1-t2)/2 to (t1*t2)

Question 3

Exergy is lost due to

Accepted Answer

A) irreversible heat transfer 
B) through finite temperature difference 
C) during the process of heat addition 
D) all of the mentioned 
A) irreversible heat transfer 
B) through finite temperature difference 
C) during the process of heat addition 
D) all of the mentioned

Question 4

Mass and energy are conserved quantities, but entropy is generally not conserved.

Accepted Answer

A) True 
 B)False

Question 5

Energy is said to be degraded each time it flows through a finite temperature difference.

Accepted Answer

A) True 
 B)False

Entropy increase dS of the system can be expressed as

The final temperatures of two bodies, initially at T1 and T2 can range from

Exergy is lost due to

Mass and energy are conserved quantities, but entropy is generally not conserved.

Energy is said to be degraded each time it flows through a finite temperature difference.

Thermodynamics and Properties of Systems

Thermodynamics: Concepts and Laws

Thermodynamics and Entropy

Thermodynamics Laws, Processes, and Efficiency

Gas Laws and Thermodynamics

Thermodynamics and Gas Laws

Thermodynamics

Steam Power Plant and Rankine Cycle

Thermodynamics and Rankine Cycle

Energy and Thermodynamics

Concepts of Heat Transfer, Irreversibility, and Thermodynamic Properties

Thermodynamics and Heat Transfer

Thermodynamics and Properties of Substances

Rankine Cycle and Properties of Steam

Gas Laws and Properties

Thermodynamics and Gas Mixtures: Equations, Properties, and Applications

Thermodynamics and Temperature Scales

Thermodynamics and the Second Law: Efficiency, Entropy, and Exergy

Thermodynamics and Gas Properties

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Exam 13: Thermodynamics and Entropy Principles

Entropy increase dS of the system can be expressed as

The final temperatures of two bodies, initially at T1 and T2 can range from

Exergy is lost due to

Mass and energy are conserved quantities, but entropy is generally not conserved.

Energy is said to be degraded each time it flows through a finite temperature difference.

Thermodynamics and Properties of Systems

Thermodynamics: Concepts and Laws

Thermodynamics and Entropy

Thermodynamics Laws, Processes, and Efficiency

Gas Laws and Thermodynamics

Thermodynamics and Gas Laws

Thermodynamics

Steam Power Plant and Rankine Cycle

Thermodynamics and Rankine Cycle

Energy and Thermodynamics

Concepts of Heat Transfer, Irreversibility, and Thermodynamic Properties

Thermodynamics and Heat Transfer

Thermodynamics and Properties of Substances

Rankine Cycle and Properties of Steam

Gas Laws and Properties

Thermodynamics and Gas Mixtures: Equations, Properties, and Applications

Thermodynamics and Temperature Scales

Thermodynamics and the Second Law: Efficiency, Entropy, and Exergy

Thermodynamics and Gas Properties

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