Thermodynamics

Question 1

energy of the molecules
comprising the substance.

Answer 1

Internal energy

Question 2

Kinetic and potential energy
associated with a substance

Answer 2

Internal energy

Question 3

Energy influenced by macroscopic position, configuration, or motion

Answer 3

External energy

Question 4

Divides the system and the surroundings

Answer 4

Boundary

Answer 5

System

Answer 6

Surroundings

Question 7

does not permit the transfer of matter between the system and its
surroundings

Answer 7

Closed system

Answer 8

Open system

Question 9

Properties that depend on quantity of materials

Answer 9

Extensive properties

Question 10

Properties independent of the quantity of
material

Answer 10

intensive properties

Question 11

A static condition, the absence of change

Answer 11

Equilibrium

Question 12

Any tendency toward change is caused by a ____

Answer 12

driving force

Question 13

Explain reversible processes

Answer 13

*A process is reversible when its direction can be reversed at any point by an infinitesimal change in external conditions.
*Ideal in that it produces maximum work with minimum amount of effort
*Frictionless

Question 14

Explain steady-state processes

Answer 14

conditions within the control volume
do not change with time

Question 15

homogeneous region of matter

Answer 15

Phase

Question 16

The ______ at equilibrium is established when its temperature, pressure, and the compositions of all phases are fixed.

Answer 16

intensive state of a system

Question 17

Where two phases coexist in
equilibrium.

Answer 17

Region

Question 18

Coexisting phases are connected by the horizontal segment of the isotherm

Answer 18

Saturated

Question 19

Basis of PVT diagrams

Answer 19

Equation of state

Question 20

Relates pressure, molar or specific volume, and temperature for a pure homogeneous fluid at equilibrium.

Answer 20

Equation of state

Question 21

Relates pressure, molar or specific volume, and temperature for a pure homogeneous fluid at equilibrium.

Question 22

Relates pressure, molar or specific volume, and temperature for a pure homogeneous fluid at equilibrium.

Question 23

Fluid with both compressibility and expansivity constants equal to zero

Answer 23

incompressible fluid

Question 24

Validity of Ideal Gas Law

Answer 24

P=0, T=infinite

Question 25

Measure of the deviation of the real-gas molar volume from its ideal-gas value

Answer 25

compressibility factor

Question 26

PV/RT

Answer 26

compressibility factor

Question 27

A mixture in which the composition of coexisting vapor and liquid phases are the same

Answer 27

Azeotropic mixture

Question 28

Entropy

Answer 28

Measure of disorder within a system.