Chem 102: Thermodynamics

Question 0

Closed system

Answer 0

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

Question 1

Open system

Answer 1

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

Question 2

Isolated system

Answer 2

Neither mass nor energy can flow in or out of system

Question 3

Formula for pressure

Answer 3

Force/area

Question 4

Formula for force

Answer 4

Area * pressure

Question 5

Formula:

Work (w)

Answer 5

W= -P ^V

^change in

Question 6

+q means….

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

Answer 6

Heat flows INTO system from surroundings

System gets cold

Question 7

-q means….

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

Answer 7

Heat flows OUT of system, into surroundings

System gets hot

Question 8

System gets HOT means q is +/-

Answer 8

-q

Question 9

System gets COLD means q is +/-

Answer 9

+q

Question 10

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

Answer 10

-q

Question 11

If heat flows into the system, q is…

Answer 11

+q

Question 12

Isobaric

Answer 12

Constant pressure

Delta P=0

Question 13

Isothermic

Answer 13

Constant temp

Delta T=0

Question 14

Nano(meter)

Symbol…
Factor…

Answer 14

N

10^-9

Question 15

Micro(meter)

Symbol…
Factor…

Answer 15

U (greek mu)

10^-6

Question 16

Milli(meter)

Symbol…
Factor…

Answer 16

M

10^-3

Question 17

Centi(meter)

Symbol…
Factor…

Answer 17

C

10^-2

Question 18

Deci(meter)

Symbol…
Factor…

Answer 18

D

10^-1

Question 19

Deca(meter)

Symbol…
Factor…

Answer 19

Da

10^1

Question 20

Hecto(meter)

Symbol…
Factor…

Answer 20

H

10^2

Question 21

Kilo(meter)

Symbol…
Factor…

Answer 21

K

10^3

Question 22

Mega(meter)

Symbol…
Factor…

Answer 22

M

10^6

Question 23

Giga(meter)

Symbol…
Factor…

Answer 23

G

10^9

Question 24

Tera(meter) Symbol... Factor...

Answer 24

T 10^12

Question 25

Isocoric

Answer 25

Constant volume Rigid walls Delta V=0

Question 26

Adiabatic walls

Answer 26

Isolated system No heat flow q=0

Question 27

Extensive property

Answer 27

Property that depends on the quantity of the substance present Ex) mass, moles, free energy (E)

Question 28

Intensive property

Answer 28

Property that is independent of the quantity of the substance present Ex) density, molarity

Question 29

Thermodynamic state

Answer 29

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

Question 30

Isobaric process

Answer 30

Change where P is constant but T and V change

Question 31

Isocoric process

Answer 31

Change where V is constant but T and P change

Question 32

Isothermal process

Answer 32

Change where T is constant but P and V change

Question 33

Formla: Kinetic Energy

Answer 33

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