# need help with this physics ideal gases question!!

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#1
Issac physics G2.1

What is the volume of a mole of gas at atmospheric pressure (1.01*10^5 Pa) and at 20 ∘C? Give your answer to two significant figures.
0
1 month ago
#2
Just use the ideal gas equation and rearrange for volume?
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1 month ago
#3
Use pV=nRT, rearrange for V
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1 month ago
#4
pV = nRT
V = (nRT)/p
V = [1 x 8.31 x (20 + 273)] / 1.01*10^5
V = 0.0241 m^3 or 24107 cm^3
To 2 s.f = 0.0240 m^3 or 24000 cm^3
Hope this helps!
Last edited by Meli5; 1 month ago
1
#5
(Original post by Meli5)
pV = nRT
V = (nRT)/p
V = [1 x 8.31 x (20 + 273)] / 1.01*10^5
V = 0.0241 m^3 or 24107 cm^3
To 2 s.f = 0.0240 m^3 or 24000 cm^3
Hope this helps!
thankyouu it helps
i didnt change into kelvin
0
1 month ago
#6
(Original post by anonymous12345.)
Issac physics G2.1

What is the volume of a mole of gas at atmospheric pressure (1.01*10^5 Pa) and at 20 ∘C? Give your answer to two significant figures.
i dont do physics but acnt you just use PV = nRT
0
1 month ago
#7
(Original post by anonymous12345.)
thankyouu it helps
i didnt change into kelvin
np if you want you can upvote the answer
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#8
now how do you upvote the answer lmaoo

(Original post by Meli5)
pV = nRT
V = (nRT)/p
V = [1 x 8.31 x (20 + 273)] / 1.01*10^5
V = 0.0241 m^3 or 24107 cm^3
To 2 s.f = 0.0240 m^3 or 24000 cm^3
Hope this helps!
(Original post by Meli5)
np if you want you can upvote the answer
0
1 month ago
#9
(Original post by anonymous12345.)
now how do you upvote the answer lmaoo
There is a like button just beneath it xd
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