Chapter 1-8

Question 1

The product of pressure and volume has energy units

Answer 1

True

Question 2

when x=0 what does it mean

Answer 2

saturated liquid

Question 3

when x=1

Answer 3

saturated vapor

Question 4

when Pgiven>Psat

Answer 4

compressed liquid

Question 5

when Tgiven>Tsat

Answer 5

superheated vapor

Question 6

Passing from a solid phase directly into vapor phases is called

Answer 6

sublimation

Question 7

A substance exist as ___ in the region to the right of saturated vapor line and at temperature above critical point temperature

Answer 7

Superheated vapor

Question 8

___ is a mixture of saturated vapor and saturated liquid

Answer 8

wet vapor

Question 9

Is the science that is devoted to understanding energy in all its forms

Answer 9

Thermodynamics

Question 10

therme = \_\_\_
dynamis = \_\_\_

Answer 10

heat, strength

Question 11

Also known as macroscopic approach

Answer 11

Classical Thermodynamics

Question 12

Also known as microscopic approach, statistical means

Answer 12

Statistical Thermodynamics

Question 13

Whatever we want to study. A collection of matter under consideration enclosed within a boundary

Answer 13

system

Question 14

The region outside the boundary or the space and matter external to the system

Answer 14

surrounding

Question 15

Also known as fixed mass, a ___ is defined when system when there can there can be no transfer of mass across its boundary .

Answer 15

Closed system

Question 16

The region is also called a control volume. Mass crosses the boundary a control volume .

Answer 16

Open system

Question 17

A special type of closed system that does not interact in any way with its surroundings. No mass or energy flow.

Answer 17

Isolated system

Question 18

The condition of a of a system as described by its properties.

Answer 18

State

Question 19

Macroscopic characteristic of a system such as mass, volume, energy, pressure, temperature.

Answer 19

Property

Question 20

A property is called ___ if its value for an overall system is the sum of its values for the parts into which the system is divided.

Answer 20

Extensive property

Question 21

are those that are independent of the mass of a system

Answer 21

intensive property

Question 22

is defined as is defined as mass per unit volume

Answer 22

density

Question 23

Is the reciprocal of density

Answer 23

Specific volume

Question 24

relative density is defined as the ratio of the density of a substance to the density of some standard substance at a specified temperature

Answer 24

Specific gravity

Question 25

is the weight of a unit volume of a substance

Answer 25

specific weight

Question 26

is the temperature measured from absolute zero

Answer 26

Absolute temperature

Question 27

is the temperature at which the molecules stop moving

Answer 27

Absolute zero

Question 28

is defined as a normal force exerted by fluid per unit area

Answer 28

Pressure

Question 29

is the pressure measured above a perfect vacuum

Answer 29

Absolute pressure

Question 30

is the pressure measured from the level of atmospheric pressure by most pressure recording instrument like pressure gage and open -ended manometer

Answer 30

Gage pressure

Question 31

is the pressure obtained barometer reading

Answer 31

Atmospheric pressure

Question 32

is the difference between is the atmospheric pressure and absolute pressure

Answer 32

Vacuum pressure

Question 33

is the distance between two points in space. is the distance

Answer 33

Length

Question 34

is the period between two events or during which something happens

Answer 34

Time

Question 35

Is the quantity of matter that a substance composed of. It is the quantity of matter that a substance composed of. It is invariant with location.

Answer 35

Mass

Question 36

is sometimes viewed as fundamental (it in the English engineering system) and sometimes derived (as in the SI system)

Answer 36

Force

Question 37

refers to any change that a system undergoes undergoes from one equilibrium state

Answer 37

Process

Question 38

is the the series of states states through which a system passes

Answer 38

Path

Question 39

A system is said to have undergone a ___ if it returns to its initial state at the end of process .

Answer 39

Cycle

Question 40

Constant temperature

Answer 40

Isothermal process

Question 41

Constant pressure

Answer 41

Isobaric process

Question 42

Also known as isometric process, no work done

Answer 42

Isochoric process

Question 43

can be defined as the form of energy that can be converted mechanical work completely and directly by an ideal mechanical mechanical device such as an ideal turbine turbine.

Answer 43

Mechanical energy

Question 44

is defined as the form of energy that is transferred between two systems (or a between two systems and its Surroundings) by virtue of a temperature difference.

Answer 44

Heat

Question 45

is the energy transfer associated with a associated with a force acting through a distance

Answer 45

Work