It helps dispersed phase to mix in dispersion medium,in emulsion both are liquids.
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Anushka answered this
Emulsion can be stabilized by increasing the repulsion between the dispersed phase i.e. by increasing the electrostatic repulsion or sterric repulsion.Emulsifiers are amphiphiles that reduce the interfacial tension between the two phases and contribute to the stabilization of dispersed droplets with electostatic and steric effects.
