MEGR 3111 THERMO TEST #1 EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS LATEST VERSION 2025/2026.
Closed System / Control Mass - ANS only heat and work cross the system boundary
Open System / Control Volume - ANS work, heat, and mass cross the system boundary
Stationary Power Plant - ANS converts stored energy into work
Moving Power Plant - ANS think vehicle propulsion
ex. refrigeration/AC, biological systems, ecological systems
System - ANS Subject/object of study
Surroundings - ANS everything that is not the system
System Boundary / Control Surface - ANS line separating the system from the surroundings
Entropy - ANS the measurement of organization of molecules
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Property - ANS observable, measurable, quantity describing an aspect of the system
Extensive Property - ANS depends on the amount or size of the system
Intensive Property - ANS independent of the amount or size of the system
ex. pressure, temperature, density
Extensive to Intensive - ANS divide by mass
Specific Property - ANS The intensive version of an extensive property
ex. Volume (m^3) to Specific Volume (m^3/kg)
Physical Quantity - ANS characterized by dimensions
Primary: mass, length, time
Secondary: velocity, volume
Density / Specific Volume - ANS mass per unit volume
Pressure - ANS normal force per unit area
1 Pa = - ANS 1 N/m^2
1 bar - ANS 10^5 Pa
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS WITH 100% CORRECT
ANSWERS LATEST VERSION 2025/2026.
Closed System / Control Mass - ANS only heat and work cross the system boundary
Open System / Control Volume - ANS work, heat, and mass cross the system boundary
Stationary Power Plant - ANS converts stored energy into work
Moving Power Plant - ANS think vehicle propulsion
ex. refrigeration/AC, biological systems, ecological systems
System - ANS Subject/object of study
Surroundings - ANS everything that is not the system
System Boundary / Control Surface - ANS line separating the system from the surroundings
Entropy - ANS the measurement of organization of molecules
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Property - ANS observable, measurable, quantity describing an aspect of the system
Extensive Property - ANS depends on the amount or size of the system
Intensive Property - ANS independent of the amount or size of the system
ex. pressure, temperature, density
Extensive to Intensive - ANS divide by mass
Specific Property - ANS The intensive version of an extensive property
ex. Volume (m^3) to Specific Volume (m^3/kg)
Physical Quantity - ANS characterized by dimensions
Primary: mass, length, time
Secondary: velocity, volume
Density / Specific Volume - ANS mass per unit volume
Pressure - ANS normal force per unit area
1 Pa = - ANS 1 N/m^2
1 bar - ANS 10^5 Pa
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
