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Equivalence between external electric field with temperature and supersaturation in nucleation process

By N Singh and Anand Kumar


379-381The equivalence between critical temperature corresponding to unit nucleation rate per unit volume has been studied with external electric field applied to water vapours. It has been found that an external electric field of 1 e.s.u. with different supersaturation ratio is equivalent to several orders of temperature. The high electric field is found to correspond with lower temperatures for critical nucleation. The theory of droplet growth in presence of external electric field has been applied to water vapour condensation. The radius of critical nucleus is found to depend on electric field and relaxation time. Further in presence of electric field, Gibb's free energy of formation of water molecule changes for a critical nucleus and is found to be much less than that in absence of the electric field, but equilibrium concentration of nuclei is very much larger. </span

Topics: Nucleation process, Supersaturation, Electric field, Drop growth
Publisher: NISCAIR-CSIR, India
Year: 2003
OAI identifier: oai:localhost:123456789/29995
Provided by: NOPR
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