Explain convention of arbitrarily assigning a zero enthalpy

Reference no: EM13292882

The convention of arbitrarily assigning a zero enthalpy value to all the most stable elements in the standards state and (usually) 298 K is a convenient way of dealing with the enthalpy changes of chemical processes. This convention does not apply to one kind of process, however. What process is it? Why?

Reference no: EM13292882

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