Select the two conditions that must be met by a thermochemical equation so that its standard enthalpy change can be written as ÄfH°.
a) One mole of each reactant is used.
b) All substances are at 0°C and 1.013x105 Pa pressure.
c) The reactants are found in their standard states.
d) One kilogram of the substance is produced.
e) One mole of a compound is produced.
f) The values of ÄH for each substance must be specified.
2 answers
Look at a and c. I also thought 25 C (298.15 K) was specified.
a
c
c
1 answer