Question

what would be the pressure of a given mass of a gas, if its volume and temperature are doubled ............. ?

Answer 1

P1V1/T1=P2V2/T2 when mass is constant.

Answer 2

What happens when we sub in 2V1 for V2

Answer 3

And 2T1 for T2?

Answer 4

He wants to complement the question one word

Answer 5

Ok, we are getting there.

Answer 6

so the answer : mass is constant.?

Answer 7

No, that is an assumption, since we aren't told how it will change.

Answer 8

Do you see how when the volume is doubled, that would be 2 times the original volume?

Answer 9

yes

Answer 10

Ok, cool. And the same for temp?

Answer 11

yup

Answer 12

Ok, so, can you plug those into the equation?

Answer 13

P1V1/T1=P2V2/T2

Answer 14

That is the original equation. Can you plug in the other expressions we came up with?

Answer 15

I don't understand sorry

Answer 16

It's cool. So, since V2 can be represented by 2V1,
P1V1/T1=P2(2V1)/T2

Answer 17

Does that step make sense?

Answer 18

yes

Answer 19

:-) Can you try plugging in the expression for T2?

Answer 20

T2= P1V2T1/P2V1

Answer 21

Not solve, substitute.

Answer 22

joanna

Answer 23

:c

Answer 24

that question i didnt understand

Answer 25

:c

Answer 26

He wants to complement the question one word

Answer 27

ur a boy?

Answer 28

yup

Answer 29

P1V1/T1=P2(2V1)/(2T1)
Do you see how I subbed that in?

Answer 30

Since T2 is 2T1

Answer 31

oh, yeah

Answer 32

:-) So, can you simplify?

Answer 33

no :c

Answer 34

I can't :c

Answer 35

which grade chemistry ur talking about?

Answer 36

pls say