Unit for Pressure in delta G equation






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Minh Ngo 4G
Posts: 137
Joined: Thu Jul 25, 2019 12:17 am

Unit for Pressure in delta G equation

Postby Minh Ngo 4G » Sat Feb 15, 2020 7:12 pm

For this equation: deltaG = deltaG knot + RTlnQ. If we are given the pressure to find Q, what would be the unit for the pressure? I am refering to 5G.13

CMaduno_1L
Posts: 102
Joined: Wed Sep 18, 2019 12:18 am

Re: Unit for Pressure in delta G equation

Postby CMaduno_1L » Sat Feb 15, 2020 7:55 pm

I'm not completely sure, but I think for this question, since the given pressures would be used to find Qp, the units of bars would cancel out since Q has no units (and because it's products/reactants, so units would cancel) , so as long as the two pressures have the same units, I don't think it matters. Can someone confirm this? Thanks in advance!

Selena Yu 1H
Posts: 108
Joined: Fri Aug 09, 2019 12:16 am
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Re: Unit for Pressure in delta G equation

Postby Selena Yu 1H » Sat Feb 15, 2020 8:07 pm

Yes as long as the two pressures given are the same units then it doesn't matter because when we did chemical equilibrium we also used bars for pressure. So it will continue to be the same here. Hope this helps!


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