Thursday, July 30, 2009

Standard heat of reaction?

I have a question about the standards:





For a gas, 1 atm





For aqueous solution 1 M





Why is the standard temp 25 C (298K)? Why not O C or 100 C.


Why did they choose this temp?

Standard heat of reaction?
basically 25 C is room temperature and most research before refrigeration has been operating at this temperature. So its pratical and historical.





1 Atm is regular presure anywhere on earth.


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