- #1
Nico123
- 8
- 0
Hey Everyone,
I am a little confused about some of the values used in the following formula.
The process must provide the energy for the dissociation plus the energy to expand the produced gases. At temperature 298K and one atmosphere pressure, the system work is:
W = PΔV = (101.3 x 10^3 Pa)(1.5 moles)(22.4 x 10^-3 m3/mol)(298K/273K) = 3715 J
I understand why it is 101.3x10^3 Pa and also why it is 1.5moles, as it is H2 + 1/2 O2, but why is it 22.4x10^-3, when it is RTP. I though it should be 24x10^-3.
Also why do we do 298K/273K. I don't quite understand it.
Can someone please explain to me why these steps are done, and the reasoning behind it,
Thanks
I am a little confused about some of the values used in the following formula.
The process must provide the energy for the dissociation plus the energy to expand the produced gases. At temperature 298K and one atmosphere pressure, the system work is:
W = PΔV = (101.3 x 10^3 Pa)(1.5 moles)(22.4 x 10^-3 m3/mol)(298K/273K) = 3715 J
I understand why it is 101.3x10^3 Pa and also why it is 1.5moles, as it is H2 + 1/2 O2, but why is it 22.4x10^-3, when it is RTP. I though it should be 24x10^-3.
Also why do we do 298K/273K. I don't quite understand it.
Can someone please explain to me why these steps are done, and the reasoning behind it,
Thanks