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THERMODYNAMICS > CHAPTER 1 > Flashcards

CHAPTER 1 Flashcards

1
Q

branch of physical science which treats of the relations between heat and energy, especially the convertibility of one into the other and the chemical work involved

A

Thermodynamics

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2
Q

heat meaning?

A

thermos

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3
Q

dynamics meaning?

A

moving

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4
Q

Deals wit the thermal equilibrium and establishes a concept of temperature

A

Zeroth Law

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5
Q

It states that if two bodies are each in thermal equilibrium with a third body, they are also in equilibrium with each other.

A

Zeroth Law

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6
Q

It is also known as the Law of Conservation Energy

A

First Law of Thermodynamics

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7
Q

It states that energy cannot be created or destroyed in an isolated system.

A

First Law of Thermodynamics

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8
Q

It states that the entropy of any isolated system always increases.

A

Second Law of Thermodynamics

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9
Q

It states that the entropy of a system approaches a constant value as the temperature approaches absolute zero.

A

Third Law of Thermodynamics

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10
Q

It is a quantity of matter or a region in space or study

A

System

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11
Q

It is the mass of region outside of the system

A

Surroundings

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12
Q

The actual or hypothetical envelope enclosing the system

A

Boundary

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13
Q

It is a substance to which heat can be stored and from which heat can be extracted.

A

Working Substance

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14
Q

It is a working substance whose chemical compostion remains the same even if there is a change of phase.

A

Pure Substance

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15
Q

It is a working substance whose chemical composition remains but assumed that there is no change of phase all throughout the working process of suchh substance.

A

Ideal gas

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16
Q

It is a system where the interaction of heat and work being happened.

A

Thermodynamic system

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17
Q

It is a system that has direct interaction with its surrounding. Mass and Energy can pass this system.

A

Open System

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18
Q

It is a system that has no physical or direct interaction with its surroundings. Only energy can pass thi system.

A

Close System

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19
Q

It is a sstem where neither mass or energy can pass.

A

Isolated System

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20
Q

It is the focused volume ins pace from which the substance flows.

A

Control Volume

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21
Q

It is a surface that surrounds the control volume.

A

Control Surface

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22
Q

It is a property which does not depends on the mass of the substance.

A

Intensive Property

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23
Q

Examples of Intensive Property

A

density,pressure,temperature,velocity and stress

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24
Q

It is aproperty which depends on the mass of the substance.

A

Extensive Property

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25
Q

Examples of Extensive Property

A

ernergy,momentum,volume

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26
Q

It is defined a s the property of matter that constitutes one of the fundamental physical measurement ot the amount of matter a body contains.

A

Mass

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27
Q

It is the force acted by a body in a gravitational field or is equal to the product of mass of the body and the gravitational acceleration existing in the field.

A

Weight

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28
Q

It is the rate at which velocity changes.

A

acceleration

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29
Q

It is defined as the amount of space occupied or contained n the body and is measured by the number of cubes a body contains.

A

Volume

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30
Q

It is the ratio of mass and the total volume of the object under consideration.It primarily defines the compactness of microscopic particle of a certain substance.

A

Density or Mass Density

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31
Q

It is the ration of the volume and the total mass of the object under consideration. It primarily defines the space that will occupy by a certain mass under consideration.

A

Specific volume

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32
Q

It is the ratio of substance weight to its total volume.

A

Specific Weight or Weight Density

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33
Q

It is the ratio of object’s density to the density of some reference medium.

A

Specific Gravity or Relative Density

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34
Q

It is defined as the force per unit area.

A

Pressure

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35
Q

It is the pressure actually measured by using a [ressure gauge. Measurement always neglect the effect of the atmospheri pressure.

A

Gauge Pressure

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36
Q

It is the pressure measured using a barometer.

A

Atmospheric Pressure

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37
Q

It is the dum of gauge and barometric pressure.

A

Absolute Pressure

38
Q

It is the pressure lower than atmospheric pressure or a pressure reading below zero gauge pressure

A

Vacuum Pressure

39
Q

It is the pressure lower than atmospheri pressure and is often termed as perfect vacuum.

A

Absolute Zero Pressure

40
Q

It is the degree of hotness or coldness of a substance.

A

Temperature

41
Q

Instrument use to measure thermoemeter in a low temperature

A

Thermometer

42
Q

Instrument use to measure thermoemeter in a high temperature

A

Pyrometer

43
Q

It is the measure of the capability of one substance or medium to dissipate power once this stored energy is utlized.

A

Energy

44
Q

It is defined as the energy stored in a moving body. the higher the speed/vlocity of one object, the higher is the measure.

A

Kinetic Energy

45
Q

It is the energy that a system possesses due to its elevation.

A

Potential Energy

46
Q

The increase in potential of an elastic body can be measured proportionally in the amount of elastic deformation it possesses.

A

Potential Energy of Spring or Elastic Bodies

47
Q

It is the energy developed through the movement of the moleules within the substance brought about tha change in temperature.

A

Internal Energy

48
Q

It is the work due to a movement of volume brought about by the displacement of the boundaries.

A

Flow Work

49
Q

It is the total energy of the substance that if harnessed, be capable of doing work.it is the sum of the internal energy of the body and the flow work.

A

Enthalpy

50
Q

It is the measure of randomness of the molecules of a substance

A

Entropy

51
Q

Huh

A

Hh

52
Q

Cgs system

A

1 dyne force accelerates 1 g mass at 1 cm/s^2

53
Q

Mks system

A

1 newton force accelerates 1kg mass at 1m/s^2

54
Q

Fps system

A

1 lb force accelerates 1 slug mass at 1 ft/s^2

55
Q

1 lb force accelerates a 1 lb mass at?

A

32.174ft/s^2

56
Q

1 g force accelerates a 1 g mass @?

A

980.66 cm/s^2

57
Q

1kg force accelerates a 1kg mass at?

A

9.8066 m/s^2

58
Q

1 kg force

A

9.8066N

59
Q

1 slug

A

32.174 pound mass

60
Q

1 poundal is equal to

A

1 lb mass x 1 ft/s^2

61
Q

1 pound is equal to?

A

1 slug x 1 ft/s^2

62
Q

K of cgs system

A

1 gram mass x cm/dyne x s^2

63
Q

K of mks system

A

1 kg mass x m/newton x s^2

64
Q

K of fps system

A

K = 1 slug x ft/lb force * s^2

65
Q

1 kg force

A

9.8066 Newton

66
Q

1 slug

A

32.174 lb mass

67
Q

1 poundal

A

(1 lb mass)( 1ft/s^2)

68
Q

1 pound

A

1 slug (1 ft/s^2)

69
Q

1 slug

A

1 lbf x s^2/ ft

70
Q

Force equation

A

F = mg/k

71
Q

Specific weight formula

A

Gamma = density x g/ k

72
Q

Specific volume is the reciprocal of

A

Density

73
Q

Specific weight unit

A

Kg force / meter cube

74
Q

Pag gage ang given, ang equation ay

A

Pabs = Patm + Pgage

75
Q

Pag vacuum ang given

A

Pabs = Patm - PVacuum

76
Q

Pgage equation

A

(densityx gravity x height) /k

77
Q

Patm

A

Patm = h x specific weight

78
Q

What is the freezing point of celsius?

A

0 degrees celsius

79
Q

What is the boiling point of Celsius?

A

100 degrees celsius

80
Q

What is the difference between the freezing point and boiling point of Celsius??

A

100

81
Q

What is the freezing point of Fahrenheit?

A

32 degrees Fahrenheit

82
Q

What is the BP of Fahrenheit?

A

212 degrees Fahrenheit

83
Q

What is the difference between the FP and BP of Fahrenheit?

A

180

84
Q

What is the freezing point of Kelvin?

A

273.15 K

85
Q

What is the boiling point of K?

A

373.15 K

86
Q

What is the difference between the FP and BP of Kelvin?

A

100

87
Q

What is the FP of Rankine?

A

492 R

88
Q

What is the BP of Rankine?

A

672 R

89
Q

What is the temperature difference between the FP and BP of Rankine?

A

180

90
Q

What is the density of water?

A

1000kg/m3, 9.81 KN/m^3,62.4 lb/ft^3

91
Q

What is the density of air?

A

1.20 kg/m^3 at 101.325 Kpa and 21.2 degrees Celsius

THERMODYNAMICS (1 decks)

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