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# PV=NRT watch

1. I'm in y12 and struggling with these questions can someone help me with an example
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?
3. yes p - pascals
v = volume in dm3
n number of moles
r gas constant
t temp in kelvin
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 -.-.
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)
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.
7. Its ok i understand it now my teacher helped thanks anyways

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