# PV=NRT

Watch
Announcements
Thread starter 3 years ago
#1
I'm in y12 and struggling with these questions can someone help me with an example
0
reply
3 years ago
#2
(Original post by TRoshid)
I'm in y12 and struggling with these questions can someone help me with an example
Firstly: Do you understand what each letter means? And what units they need to be in when calculating them?
0
reply
Thread starter 3 years ago
#3
yes p - pascals
v = volume in dm3
n number of moles
r gas constant
t temp in kelvin
0
reply
3 years ago
#4
(Original post by TRoshid)
I'm in y12 and struggling with these questions can someone help me with an example
dw im struggling as well.
I get the formulas but they way they ask questions i dont know which formulas to use -.-.
0
reply
3 years ago
#5
So what they can do with these questions is give you 4 of the values and ask you to rearrange the equation and calculate the 5th value, that's pretty straight forward
Complications can arise when they give you units thats aren't SI so you have to convert them i.e. bar into pascals, or cm^3 into m^3

(Original post by TRoshid)
v = volume in dm3
If you're using R as 8.314 J K^(-1) mol^(-1) then volume should be in m^3
If you want to use dm^3 then you need to also be using kPa (the x1000 factors cancel)
0
reply
3 years ago
#6
(Original post by TRoshid)
yes p - pascals
v = volume in dm3
n number of moles
r gas constant
t temp in kelvin
volume is in m^3. Give a question ur struggling on ill help u.
0
reply
Thread starter 3 years ago
#7
Its ok i understand it now my teacher helped thanks anyways
0
reply
X

Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Should there be a new university admissions system that ditches predicted grades?

No, I think predicted grades should still be used to make offers (712)
33.92%
Yes, I like the idea of applying to uni after I received my grades (PQA) (898)
42.78%
Yes, I like the idea of receiving offers only after I receive my grades (PQO) (396)
18.87%
I think there is a better option than the ones suggested (let us know in the thread!) (93)
4.43%

View All
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.