Question

Which of the following is NOT an extensive physical property of matter?

density

mass

volume

surface area

@Photon336

Answer 1

Properties are classified into:
1) Intensive
2) Extensive
Intensive properties are properties that do not depend on the quantity of matter such as pressure and temperature.
Extensive properties are properties that their values depend on the mass of the system such as mass,volume and the enthalpy of a system.

Answer 2

so would it be...surface area?

Answer 3

im confusedddd

Answer 4

Surface area is an extensive property because it scales with the system

Answer 5

density then?

Answer 6

intensive i believe means a property that's intrinsic to the substance.

extensive means I think that has to do with something that depends on size of system.

mass, volume are out.

Density is a measure of mass per volume. m/V that's usually a fixed number maybe there's a better way to explain it.

Answer 7

each substance has its own density and that's something unique to that particular substance

Answer 8

so density would be the correct answer.

Answer 9

why do you think would be or not @RhondaSommer

Answer 10

based on what @Abmon98 said explain what those concepts mean as well.

Answer 11

because it isnt relative to only physical?

Answer 12

im sooooo cunfuzzled

Answer 13

we need to revisit the definition of extensive and intensive

Answer 14

Intensive properties are properties that do not depend on the quantity of matter such as pressure and temperature.
Extensive properties are properties that their values depend on the mass of the system such as mass, and volume.

Answer 15

im quoting @Abmon98

Answer 16

in much simpler terms

extensive properties are properties that change when the size of the sample changes

Answer 17

and intensive?

Answer 18

an intensive property doesnt change when you change the size of the sample

Answer 19

okay so i need to find out which one wont change when i change the size?

Answer 20

kind of. say if we had 8 grams of water in a container that occupies volume of 6 liters. the water occupies 3L

Answer 21

and that would be density because water, no matter how much you have has a density of 1...right?

Answer 22

say if I added 2 grams of water does the mass change? @RhondaSommer

Answer 23

yes? i think so

Answer 24

yeah, because you changed the mass

Answer 25

but density doesnt.

Answer 26

why doesnt density change but mass and volume do?

Answer 27

or better yet let me ask you. If I took away say half of the water is the density of water still the same?

Answer 28

yes

Answer 29

water always has a density of 1

Answer 30

yep

Answer 31

so density is correct?

Answer 32

You tell me, you got the right thought process down for this @RhondaSommer

Answer 33

yay! thank you!

Answer 34

can you help me with some more questions? ill post them as different questions and you can get medals for all of them :)

Answer 35

just remember we cannot give you direct answers it's against Open Study policy

Answer 36

i understand :) i want to fully understand chemistry. not just get answers :)