Question: 1- When heating a W/O emulsion, it is verified that the viscosity and density of the continuous medium reduced by half, while the viscosity and

1- When heating a W/O emulsion, it is verified that the viscosity and density of the continuous medium reduced by half, while the viscosity and density of the dispersed medium did not change. changed. How much did the terminal velocity of the droplet increase with this treatment?

2- For a W/O type emulsion to occur, it is necessary, in addition to the substances, to add surface of surfactants and cause mixing by agitators? justify

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