Standard state
In
chemistry, the
standard state of a material is its state at 1
standard atmosphere (101 325 pascals) and 25 degrees
Celsius (298.15
kelvin). When the standard state is referred to in a
chemical reaction, it also includes the condition that all
solutions are at 1
M.
The standard state is the reference state for enthalpy and a lot of material standards.
See also : Standard temperature and pressure
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