ESAS · Question Bank

Thermodynamics

274 of 308 questions match · page 5 of 14. Answer in your head first, then check the solution.

TypeAll 274Problem solvingObjective 274
✕ Clear filters
#81📘 reviewer_appEasy
The first law of thermodynamics is based on which of the ff principles?
AConservation of mass
BConservation of energy
CAction and reaction
DThe entropy - temperature relationship
#82📘 reviewer_appEasy
What is the mass or region outside the system called?
ASurroundings
BBoundary
CVolume
DEnvironment
#83📘 reviewer_appEasy
What is the real or imaginary surface that separates the system from its surroundings?
ADivision
BWall
CBoundary
DInterface
#84📘 reviewer_appEasy
A system which consists of fixed amount of mass and no mass can cross its boundary is called _______
Aequilibrium system
Bthermal equilibrium system
Copen system
Dclosed system
#85📘 reviewer_appEasy
A system in which even energy is not allowed to cross the boundary is called ________
Aclosed system
Bexclusive system
Cisolated system
Dspecial system
#86📘 reviewer_appEasy
A system in which there is a flow of mass is known as __________
Aequilibrium system
Bisolated system
Copen system
Dclosed system
#87📘 reviewer_appEasy
Open system usually encloses which of the ff devices?
ACompressor
BTurbine
CNozzle
Dall of these
#88📘 reviewer_appEasy
The boundaries of a control volume, which may either real or imaginary, is called _________
Acontrol boundary
Bcontrol system
Cinterface
Dcontrol surface
#89📘 reviewer_appEasy
Any characteristic of a thermodynamics system is called a _______
Aproperty
Bprocess
Cphase
Dcycle
#90📘 reviewer_appEasy
How are thermodynamic properties classified?
APhysical and chemical
BIntensive and extensive
CReal and imaginary
DHomogenous and heterogenous
#91📘 reviewer_appEasy
Which is NOT an intensive property of thermodynamics?
ATemperature
BMass
CPressure
DDensity
#92📘 reviewer_appEasy
Which is NOT an extensive property of thermodynamics?
ADensity
BMass
CVolume
DEnergy
#93📘 reviewer_appEasy
Extensive properties per unit mass are called _________
Aspecific properties
Brelative properties
Cunit properties
Dphase properties
#94📘 reviewer_appEasy
A system is in __________ equilibrium if theres is no change in pressure at any point if the system with time
Apressure
Bthermal
Cmechanical
Dphase
#95📘 reviewer_appEasy
If a system involves two phases, it is in __________ equilibrium when the mass of each phase reaches an equilibrium level and stays there
Achemical
Bthermal
Cmechanical
Dphase
#96📘 reviewer_appEasy
A system is in _________ equilibrium if its chemical composition does not change with time, i.e., no chemical reactions occurs
Achemical
Bthermal
Cmechanical
Dphase
#97📘 reviewer_appEasy
"The state of a simple compressible system is completely specified by two independent, intensive properties". This is known as ________
AEquilibrium postulate
BState postulate
CEnvironment postulate
DCompressible system postulate
#98📘 reviewer_appEasy
Without electrical, mechanical, gravitational, surface tension and motion effects, a system is called _______ system
Asimple
Bsimple compressible
Ccompressible
Dindependent
#99📘 reviewer_appEasy
What refers to any change that a system undergoes from one equilibrium state to another equilibrium state?
AProcess
BPath
CPhase
DCycle
#100📘 reviewer_appEasy
What refers to the series of states through which a system passes during a process?
APath
BPhase
CCycle
DDirection

More ESAS topics