Chem 102: Thermodynamics Flashcards

0
Q

Closed system

A

Energy can flow in and out of system but mass can not

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1
Q

Open system

A

Both mass and energy can flow in and out of the system

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2
Q

Isolated system

A

Neither mass nor energy can flow in or out of system

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3
Q

Formula for pressure

A

Force/area

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4
Q

Formula for force

A

Area * pressure

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5
Q

Formula:

Work (w)

A

W= -P ^V

^change in

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6
Q

+q means….

Heat flows….in/out
System gets…hot/cold

A

Heat flows INTO system from surroundings

System gets cold

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7
Q

-q means….

Heat flows….in/out
System gets…hot/cold

A

Heat flows OUT of system, into surroundings

System gets hot

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8
Q

System gets HOT means q is +/-

A

-q

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9
Q

System gets COLD means q is +/-

A

+q

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10
Q

If heat flows out of the system, q is….

A

-q

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11
Q

If heat flows into the system, q is…

A

+q

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12
Q

Isobaric

A

Constant pressure

Delta P=0

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13
Q

Isothermic

A

Constant temp

Delta T=0

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14
Q

Nano(meter)

Symbol…
Factor…

A

N

10^-9

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15
Q

Micro(meter)

Symbol…
Factor…

A

U (greek mu)

10^-6

16
Q

Milli(meter)

Symbol…
Factor…

A

M

10^-3

17
Q

Centi(meter)

Symbol…
Factor…

A

C

10^-2

18
Q

Deci(meter)

Symbol…
Factor…

A

D

10^-1

19
Q

Deca(meter)

Symbol…
Factor…

A

Da

10^1

20
Q

Hecto(meter)

Symbol…
Factor…

A

H

10^2

21
Q

Kilo(meter)

Symbol…
Factor…

A

K

10^3

22
Q

Mega(meter)

Symbol…
Factor…

A

M

10^6

23
Q

Giga(meter)

Symbol…
Factor…

A

G

10^9

24
Q

Tera(meter)

Symbol…
Factor…

A

T

10^12

25
Q

Isocoric

A

Constant volume
Rigid walls

Delta V=0

26
Q

Adiabatic walls

A

Isolated system
No heat flow
q=0

27
Q

Extensive property

A

Property that depends on the quantity of the substance present

Ex) mass, moles, free energy (E)

28
Q

Intensive property

A

Property that is independent of the quantity of the substance present

Ex) density, molarity

29
Q

Thermodynamic state

A

All possible combinations of P, T and V for a particular substance at equilibrium and independent of time.

30
Q

Isobaric process

A

Change where P is constant but T and V change

31
Q

Isocoric process

A

Change where V is constant but T and P change

32
Q

Isothermal process

A

Change where T is constant but P and V change

33
Q

Formla: Kinetic Energy

A

KE= (1/2) m * v(squared)