Plus Sign Inside a Circle????

[Spiker]

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OK, what does this sign mean? I never seen it before. It can been seen on page 56 and 75 of EK

 

[unDRdog]

EK what..what book....?????? the first thing that came to mind was a formal charge on a molecule. My gen chem book uses that notation...hope that helps..

 

[Spiker]

EK what..what book....?????? the first thing that came to mind was a formal charge on a molecule. My gen chem book uses that notation...hope that helps..

oh yea EK chemistory and no...it is not that.

 

[kthakore]

That could be an exculsive or. http://en.wikipedia.org/wiki/Exclusive_or
It might show up on some electrical cricuts in the physical sections. Good thing I am an engineer!! ERTW ftw

 

[BRRF]

I think it means approximately equal to.

At constant pressure enthalpy is, for all intents and purposes, equal to internal energy change
At constant volume enthalpy is the same as heat

 

[Spiker]

wow that is what i thought WTF they are so ..... why cant they just use .≈ ..the weavy equal sign....

 

[Spiker]

That could be an exculsive or. http://en.wikipedia.org/wiki/Exclusive_or
It might show up on some electrical cricuts in the physical sections. Good thing I am an engineer!! ERTW ftw

lol i new about the electrical circuit too but apparently it means almost equal to x.x

 

[kthakore]

Awww..... I want engineering on the mcat ....