Abstract :
The maximum attainable temperature of superheating and the critical
temperature of cesium, rubidium, and potassium are correlated using the generalized
van der Waals equation of state. This study shows that the maximum
attainable temperatures of superheating for liquid cesium, rubidium,
and potassium are 1722, 1802, and 2039 K, respectively. The results of the
determination of the maximum attainable temperatures of superheating of
liquid cesium, rubidium, and potassium are in agreement with experimental
data. The given study establishes that liquid cesium, rubidium, and potassium
can be superheated up to temperatures of about 200K below their critical
temperatures of 1924, 2017, and 2280 K, respectively. Moreover, cesium,
rubidium, and potassium have been found to obey the single-parameter law
of corresponding states, with the maximum attainable reduced temperature of
superheating as the thermodynamic similarity parameter.
Keywords :
Superheating , thermodynamic similarity. , alkali metals , Critical point , Equation of state , metastablestate , Spinodal
