Thermodynamics

Question 1

when two bodies have equality of temperature with a
third body, they in turn have equality of temperature with each
other.

Answer 1

Zeroth Law

Question 2

Also known as the Conservation of Energy principle,
states that energy can neither be created nor destroyed, it can only change form

Answer 2

First law of thermodynamics

Question 3

Deals with the quality of energy (energy
degradation). There are two classical statements of this law:

It is impossible to construct a device that will
operate in a cycle and produce no effect other than the raising of a
weight and the exchange of heat with a single reservoir.

: It is impossible to construct a device that operates
in a cycle and produces no effect other than the transfer of heat from a
cooler-body to a hot

Answer 3

Second law of thermodynamics

Question 4

It is impossible to construct a device that will
operate in a cycle and produce no effect other than the raising of a
weight and the exchange of heat with a single reservoir.

Answer 4

Kelvin Planck Statement

Question 5

It is impossible to construct a device that operates
in a cycle and produces no effect other than the transfer of heat from a
cooler-body to a hot

Answer 5

• Clausius statement

Question 6

states that the entropy of a perfect crystal is zero at
the absolute zero of temperature.

Answer 6

Third law of thermodynamics

Question 7

the
science that deals with the study of energy and
entropy;

Answer 7

Thermodynamics

Question 8

it
deals
with
the
properties
of
matter/substance related to heat and work;

Answer 8

Thermodynamics

Question 9

it deals
with processes and cycles on the transformation of
energy of all kinds, from one form to another.

Answer 9

Thermodynamics

Question 10

deals with processes of cooling; it deals
with the processes and cycles of different methods of
refrigeration;

Answer 10

Refrigeration

Question 11

condition of a substance as
described by certain observable macroscopic
parameter called Properties

Answer 11

State of Substance

Question 12

quantity of matter that is homogeneous

throughout(solid, liquid, gas)

Answer 12

Phase-

Question 13

Solid to Liquid

Answer 13

Melting

Question 14

Liquid to Solid

Answer 14

Solidification (Freezing)

Question 15

Liquid to Gas

Answer 15

Evaporation

Question 16

Gas to liquid

Answer 16

Condensation

Question 17

Solid to Gas

Answer 17

Sublimation

Question 18

Gas to Solid

Answer 18

Deposition

Question 19

Simply the change of state

Answer 19

Process

Question 20

constant temperature.

Answer 20

Isothermal

Question 21

constant pressure

Answer 21

Isobaric

Question 22

constant volume

Answer 22

Isometric/isovolumetric

Question 23

constant entropy

Answer 23

Isentropic

Question 24

constant enthalpy

Answer 24

Isenthalpic

Question 25

PV^n = C

Answer 25

Polytropic

Question 26

a series of processes one after the other such | that the initial and final states are the same.

Answer 26

Cycle

Question 27

Measures of the degree of hotness or coldness of a body

Answer 27

Temperature

Question 28

If the temperature of a given quantity of gas is held constant, the volume of the gas varies inversely with the absolute pressure during a change of state.

Answer 28

Boyle's Law

Question 29

Specific gravity is always _____ to rate of density

Answer 29

Equal

Question 30

If the pressure on a particular quantity of gas is held constant, then, with any change of state, the volume will vary directly as the absolute temperature.

Answer 30

Charle's Law

Question 31

If the volume of a particular quantity of gas is held constant, then, with any change of state, the pressure will vary directly as the absolute temperature.

Answer 31

Gay-Lussac’s Law

Question 32

the change of internal energy | of an ideal gas is a function of only the temperature change.

Answer 32

Joule’s law

Question 33

Thermodynamics cycle used in vapor power plants

Answer 33

Rankine

Question 34

Kinetic energy is the energy of the body due to its:

Answer 34

Motion

Question 35

The state of a pure substance is defined completely if we define

Answer 35

two independent intensive | properties

Question 36

An isentropic process is used to approximate an actual process. For such a process

Answer 36

the heat transfer is zero

Question 37

The amount of transferred heat required to change the temperature of unit weight of substance at one degree unit of temperature.

Answer 37

Specific heat

Question 38

A gas turbine works on the principle of

Answer 38

Brayton Cycle

Question 39

The absolute zero temperature in Celsius scale.

Answer 39

-273

Question 40

Torque is a force that tend to produce

Answer 40

Rotation

Question 41

The process that has no heat transfer

Answer 41

Isentropic/Adiabatic

Question 42

The boiling point of water in an open container at sea level is 100 o C. If the pressure on the open container is decreased such as going up to the top of a mountain, the boiling point will be

Answer 42

Decreased

Question 43

A rigid container is heated by the sun. There is no shaft work associated with the container. From the first law of thermodynamics. You determine the heat added to be

Answer 43

equal to the change in internal | energy

Question 44

A device used to keep moisture from passing through the system

Answer 44

dehydrator

Question 45

An adiabatic process is characterized by which of the following?

Answer 45

heat transfer is zero

Question 46

As heat is removed from a substance it gets colder. When no more heat can be removed and the temperature cannot be lowered any further, we have reached

Answer 46

absolute zero

Question 47

A 100% efficient pump can draw a suction of.

Answer 47

34 ft H2O 14. 7 Psi 29. 92 in Hg

Question 48

• If the temperature of the medium is 0 C, what will be the temperature if it is doubled?

Answer 48

273 C

Question 49

• A closed system experiences a reversible process where heat rejection is the only energy transferred. The entropy change must be

Answer 49

negative

Question 50

If a centrifugal pump tends to vibrate, it might be caused by:

Answer 50

misalignment worn bearings clogged or damaged impeller

Question 51

A manometer measures:

Answer 51

Pressure

Question 52

A pump is used to increase the pressure of the water entering the boiler of steam power cycle. Which statement is true concerning the pump?

Answer 52

The enthalpy of water leaving the pump is higher than the enthalpy of water entering

Question 53

• A pyrometer measures:

Answer 53

Temperature

Question 54

The steam power cycle is modeled by ideal cycle | known as the:

Answer 54

Rankine

Question 55

• An open system first law should be utilized for

Answer 55

turbine . pump boiler

Question 56

An inventor claims to have built an engine which will revolutionize the automotive industry. Which of the following should be the best test to determine if the inventors claim is true?

Answer 56

Second law of thermodynamics

Question 57

In an ideal cycle, liquid leaves the condenser and is expanded in such a manner that the enthalpy of the liquid is equal to the enthalpy of the resulting saturated mixture. This type of expansion is known as:

Answer 57

throttling process

Question 58

• A type of process where the pressure remains | constant

Answer 58

Isobaric

Question 59

A type of process where the temperature remains | constant

Answer 59

Isothermal

Question 60

• A type of process where the volume remains constant

Answer 60

Isometric / isovolumetric

Question 61

Transformation of energy from one form to another

Answer 61

Thermodynamics

Question 62

Father of thermodynamics

Answer 62

Nicolas Leonardo Sadi Carnot

Question 63

Properties that are independent of the size (mass) of a system, such as temperature, pressure and density

Answer 63

Intensive Properties

Question 64

Values that are dependent on size of the system such as mass, volume and total energy

Answer 64

Extensive Properties

Question 65

The measure of the amount of material present in the body

Answer 65

Mass

Question 66

The force exerted by that body when its mass is accelerated in a gravitational field

Answer 66

Weight

Question 67

The ratio of total mass and total volume or the mass per unit volume

Answer 67

Density

Question 68

Reciprocal of specific volume

Answer 68

Density

Question 69

Ratio of total volume and total mass or the volume per unit mass of the substance

Answer 69

Specific volume

Question 70

The Force of gravity on unit volume

Answer 70

Specific Weight

Question 71

Measure of relative density of a substance as compared to the density of water at a standard temperature for liquid density of air for gases

Answer 71

Specific gravity

Question 72

It is dimensionless property whose values for liquid varies with temperature

Answer 72

Specific Gravity

Question 73

A measure of the molecular activity of a substance or the internal energy of a hody

Answer 73

Temperature

Question 74

Refers to temperature measured from absolute zero

Answer 74

Absolute temperature

Question 75

Molecular state where there is no molecular mostion of individual atoms

Answer 75

Absolute zero temperature