Answer:
900 J/mol
Explanation:
Data provided:
Enthalpy of the pure liquid at 75° C = 100 J/mol
Enthalpy of the pure vapor at 75° C = 1000 J/mol
Now,
the heat of vaporization is the the change in enthalpy from the liquid state to the vapor stage.
Thus, mathematically,
The heat of vaporization at 75° C
= Enthalpy of the pure vapor at 75° C - Enthalpy of the pure liquid at 75° C
on substituting the values, we get
The heat of vaporization at 75° C = 1000 J/mol - 100 J/mol
or
The heat of vaporization at 75° C = 900 J/mol
What is the mole ratio of  to Fe? if oxygen it is 4:3 Fe3O4
The elements helium neon and Exon are all part of the same _______ on the periodic table.
B. Group
Answer:
I'm pretty sure it's A. BRUSH
Explanation:
If I'm wrong let ne know please
Answer:
a b d
these are part of an ecosystem or can be
