THERMODYNAMICS AND HEAT
TRANSFER EXAM QUESTIONS WITH
CORRECT ANSWERS
Multiple Phases - ANSWER--separated by a phase boundary
-Ex. Oil and water
Single Phase - ANSWER--Perfectly miscible
-Ex. Air= O₂+N₂+CO₂
Phase Equilibrium - ANSWER--No phase changes
State - ANSWER-unique condition of a system/phase as described by its properties
Process - ANSWER-transformation from one state to another
Path - ANSWER-series of states through which a system passes
Quasi-equilibrium process - ANSWER-the deviation from thermodynamic equilibrium in
infinitesimal and all the states the system passes through during the process may be
considered equilibrium states
-Ex. if weights on a piston are small and are taken off one by one
Isothermal Process - ANSWER-Constant temperature
Isobaric Process - ANSWER-Constant pressure
Isochoric/Isometric - ANSWER-Constant volume
Zeroth law of Thermodynamics - ANSWER--equlity of temperatures
-Tb=Ta and Tc=Ta, then Tb=Tc
-definition of temp.
Triple Point - ANSWER--state in which the solid, liquid, and vapor phases of water exist
together in eqilibrium
-0.01°C (for water)
-different P and T for different substances
Pure Substance - ANSWER--one that has a homogeneous and invariable chemical
composition
-can exist in more than one phase but chemical composition is the same
-simple compressible substances
-described by two independent properties
TRANSFER EXAM QUESTIONS WITH
CORRECT ANSWERS
Multiple Phases - ANSWER--separated by a phase boundary
-Ex. Oil and water
Single Phase - ANSWER--Perfectly miscible
-Ex. Air= O₂+N₂+CO₂
Phase Equilibrium - ANSWER--No phase changes
State - ANSWER-unique condition of a system/phase as described by its properties
Process - ANSWER-transformation from one state to another
Path - ANSWER-series of states through which a system passes
Quasi-equilibrium process - ANSWER-the deviation from thermodynamic equilibrium in
infinitesimal and all the states the system passes through during the process may be
considered equilibrium states
-Ex. if weights on a piston are small and are taken off one by one
Isothermal Process - ANSWER-Constant temperature
Isobaric Process - ANSWER-Constant pressure
Isochoric/Isometric - ANSWER-Constant volume
Zeroth law of Thermodynamics - ANSWER--equlity of temperatures
-Tb=Ta and Tc=Ta, then Tb=Tc
-definition of temp.
Triple Point - ANSWER--state in which the solid, liquid, and vapor phases of water exist
together in eqilibrium
-0.01°C (for water)
-different P and T for different substances
Pure Substance - ANSWER--one that has a homogeneous and invariable chemical
composition
-can exist in more than one phase but chemical composition is the same
-simple compressible substances
-described by two independent properties
