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GEN CHEM - Q4 > THERMODYNAMICS > Flashcards

THERMODYNAMICS Flashcards

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1
Q

is the transfer of energy as disorderly motion as a result of a temperature difference between the system and the surrounding

A

Heat

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2
Q

q (+) and w (+), internal energy?

A

increases

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3
Q

Value does not depend on the amount of the material present. (e.g: density, temperature)

A

Intensive Property

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4
Q

________________ of a substance is the amount of heat required to raise the temperature of a given amount of the substance by one degree Celsius

A

Heat capacity (C)

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5
Q

Deals with the study of energy and its transformation.

A

Thermodynamics

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6
Q

The greater the __________, the greater the heat required to produce a given increase in temperature

A

Heat Capacity

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7
Q

Heat evolved by the system

A

Exothermic (-q)

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8
Q

The change in Energy is the sum of the

A

Heat exchanged and work done

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9
Q

means it does not allow matter to pass through it

A

impermeable

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10
Q

is the energy utilized to cause an object to move against an opposing force

A

Work

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11
Q

Heat added to the system

A

Endothermic (+q)

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12
Q

Types of System

A

Open System
Closed System
Isolated System

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13
Q

Work done on the system

A

+w

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14
Q

“the capacity to do work or even transfer heat to cause a change in temperature”

A

Energy

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15
Q

It depends on mass, temperature and state of the system

A

Internal Energy

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16
Q

It can be adiabatic or nonadiabatic (diathermal)

A

Boundary/Wall

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17
Q

It can be rigid (immovable) or non-rigid (movable)

A

Boundary/Wall

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18
Q

is the total change in internal energy of a system

A

ΔEsys

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19
Q

states that in the process, the change in energy of a system is equal to the heat absorbed (q) by the system and the work (w) done on it

A

The First Law of Thermodynamics

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20
Q

characterized by a free exchange of matter and energy

A

Open System

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21
Q

Heat (q) and work (w) are _________ when they enter the system

A

Positive

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22
Q

The law implies that the net energy flow to or from any system comes in the form of either

A

Work or Heat

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23
Q

depends on the path by which a system in one state is changed into another state. The value changes depends how the system came to be

A

Path Function

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24
Q

“energy cannot be created nor destroyed. It can be transformed into another form, but the total amount of energy remains the same”

A

First Law of Thermodynamics: Law of Conservation Energy

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25
Q

there is still a free exchange of energy but in terms of matter, the exchange with the surroundings is not possible due to an impermeable wall which not allows the flow of mass from system to surroundings and vice-versa

A

Closed System

26
Q

the exchange of both matter and energy to the surrounding is not possible because of having a wall that is impermeable and adiabatic

A

Isolated System

27
Q

include everything else except the system in the universe

A

Surrounding

28
Q

value of a given property depends only on the state of the system. It is independent of the manner the state is attained

A

State Function

29
Q

Work done by the system

A

-w

30
Q

is the amount of heat required to raise its temperature by 1 K (or 1 °C) of 1 g of a substance

A

Specific heat capacity (c)

31
Q

separate the system and the surroundings

A

Boundary/Wall

32
Q

“thermes”

A

heat

33
Q

Heat added to the system

A

Endothermic (+q)

34
Q

the change in heat in any physical or chemical processes are measured with an instrument called

A

Calorimetr

35
Q

both matter and energy can flow from the system to the surroundings or from surroundings to system

A

Open System

36
Q

Heat added to the system

A

Endothermic (+q)

37
Q

q (+) and w (-)
q (-) and w (+)
internal energy?

A

The sign of ΔE depends on the magnitude of q and w

38
Q

A system can exchange energy with its surrounding through heat, work, or both.

A

The First Law of Thermodynamics

39
Q

allowing heat to pass through

A

non-adiabatic

40
Q

It can be permeable or impermeable

A

Boundary/Wall

41
Q

nom-rigid

A

movable

42
Q

Heat (q) and work (w) are _________ when they leave the system

A

Negative

43
Q

From the Greek word : “thermes” - heat , “dynamo” - power

A

Thermodynamics

44
Q

Thermodynamics Properties may be

A

Extensive Property
Intensive Property

45
Q

It determines if the system expands or compressed

A

Work

46
Q

“dynamo”

A

power

47
Q

Ex.: Work and Heat

A

Path Function

48
Q

Thermodynamics Properties can also be

A

State Function
Path Function

49
Q

is the process of measuring the amount of heat that is either released or absorbed during a physical or chemical reaction

A

Calorimetry

50
Q

It is the sum of Potential Energy and Kinetic Energy within the system.

A

Internal Energy

51
Q

It is the transfer of energy as orderly motion

A

Work

52
Q

Ex.: volume, pressure, internal energy, entropy

A

State Function

53
Q

Thermodynamics only deals the

A

Change in Internal Energy

54
Q

specific part of the universe that is under our interest

A

System

55
Q

q (-) and w (-), internal energy?

A

decreases

56
Q

heat cannot be pass through

A

adiabatic

57
Q

It is a state function

A

Internal Energy

58
Q

rigid

A

immovable

59
Q

Value depends on the amount of material present. (e.g: mass, volume, internal energy)

A

Extensive Property

60
Q

Enable us to understand the energetics and directions of reactions.

A

Thermodynamics

GEN CHEM - Q4 (3 decks)

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