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THERMODYNAMICS > CHAPTER 1 > Flashcards

CHAPTER 1 Flashcards

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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
Examples of Extensive Property
ernergy,momentum,volume
26
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.
Mass
27
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.
Weight
28
It is the rate at which velocity changes.
acceleration
29
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.
Volume
30
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.
Density or Mass Density
31
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.
Specific volume
32
It is the ratio of substance weight to its total volume.
Specific Weight or Weight Density
33
It is the ratio of object's density to the density of some reference medium.
Specific Gravity or Relative Density
34
It is defined as the force per unit area.
Pressure
35
It is the pressure actually measured by using a [ressure gauge. Measurement always neglect the effect of the atmospheri pressure.
Gauge Pressure
36
It is the pressure measured using a barometer.
Atmospheric Pressure
37
It is the dum of gauge and barometric pressure.
Absolute Pressure
38
It is the pressure lower than atmospheric pressure or a pressure reading below zero gauge pressure
Vacuum Pressure
39
It is the pressure lower than atmospheri pressure and is often termed as perfect vacuum.
Absolute Zero Pressure
40
It is the degree of hotness or coldness of a substance.
Temperature
41
Instrument use to measure thermoemeter in a low temperature
Thermometer
42
Instrument use to measure thermoemeter in a high temperature
Pyrometer
43
It is the measure of the capability of one substance or medium to dissipate power once this stored energy is utlized.
Energy
44
It is defined as the energy stored in a moving body. the higher the speed/vlocity of one object, the higher is the measure.
Kinetic Energy
45
It is the energy that a system possesses due to its elevation.
Potential Energy
46
The increase in potential of an elastic body can be measured proportionally in the amount of elastic deformation it possesses.
Potential Energy of Spring or Elastic Bodies
47
It is the energy developed through the movement of the moleules within the substance brought about tha change in temperature.
Internal Energy
48
It is the work due to a movement of volume brought about by the displacement of the boundaries.
Flow Work
49
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.
Enthalpy
50
It is the measure of randomness of the molecules of a substance
Entropy
51
Huh
Hh
52
Cgs system
1 dyne force accelerates 1 g mass at 1 cm/s^2
53
Mks system
1 newton force accelerates 1kg mass at 1m/s^2
54
Fps system
1 lb force accelerates 1 slug mass at 1 ft/s^2
55
1 lb force accelerates a 1 lb mass at?
32.174ft/s^2
56
1 g force accelerates a 1 g mass @?
980.66 cm/s^2
57
1kg force accelerates a 1kg mass at?
9.8066 m/s^2
58
1 kg force
9.8066N
59
1 slug
32.174 pound mass
60
1 poundal is equal to
1 lb mass x 1 ft/s^2
61
1 pound is equal to?
1 slug x 1 ft/s^2
62
K of cgs system
1 gram mass x cm/dyne x s^2
63
K of mks system
1 kg mass x m/newton x s^2
64
K of fps system
K = 1 slug x ft/lb force * s^2
65
1 kg force
9.8066 Newton
66
1 slug
32.174 lb mass
67
1 poundal
(1 lb mass)( 1ft/s^2)
68
1 pound
1 slug (1 ft/s^2)
69
1 slug
1 lbf x s^2/ ft
70
Force equation
F = mg/k
71
Specific weight formula
Gamma = density x g/ k
72
Specific volume is the reciprocal of
Density
73
Specific weight unit
Kg force / meter cube
74
Pag gage ang given, ang equation ay
Pabs = Patm + Pgage
75
Pag vacuum ang given
Pabs = Patm - PVacuum
76
Pgage equation
(densityx gravity x height) /k
77
Patm
Patm = h x specific weight
78
What is the freezing point of celsius?
0 degrees celsius
79
What is the boiling point of Celsius?
100 degrees celsius
80
What is the difference between the freezing point and boiling point of Celsius??
100
81
What is the freezing point of Fahrenheit?
32 degrees Fahrenheit
82
What is the BP of Fahrenheit?
212 degrees Fahrenheit
83
What is the difference between the FP and BP of Fahrenheit?
180
84
What is the freezing point of Kelvin?
273.15 K
85
What is the boiling point of K?
373.15 K
86
What is the difference between the FP and BP of Kelvin?
100
87
What is the FP of Rankine?
492 R
88
What is the BP of Rankine?
672 R
89
What is the temperature difference between the FP and BP of Rankine?
180
90
What is the density of water?
1000kg/m3, 9.81 KN/m^3,62.4 lb/ft^3
91
What is the density of air?
1.20 kg/m^3 at 101.325 Kpa and 21.2 degrees Celsius

THERMODYNAMICS (1 decks)

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