Heat would ___ oil flotation and removal.

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Multiple Choice

Heat would ___ oil flotation and removal.

Explanation:
Heat affects oil removal by changing the physical properties at the oil–water interface. As temperature rises, oil viscosity drops and interfacial tension between oil and water decreases. This makes oil droplets easier to deform and coalesce into larger droplets, which rise more quickly when bubbles are used for flotation. In other words, higher temperature makes the droplets more mobile and easier to detach and float to the surface, improving flotation efficiency and removal. The other options don’t fit as well: heat does produce a noticeable effect rather than no effect, and the improvement is typically more than partial, so the strongest, most accurate choice is that heat enhances the process.

Heat affects oil removal by changing the physical properties at the oil–water interface. As temperature rises, oil viscosity drops and interfacial tension between oil and water decreases. This makes oil droplets easier to deform and coalesce into larger droplets, which rise more quickly when bubbles are used for flotation. In other words, higher temperature makes the droplets more mobile and easier to detach and float to the surface, improving flotation efficiency and removal.

The other options don’t fit as well: heat does produce a noticeable effect rather than no effect, and the improvement is typically more than partial, so the strongest, most accurate choice is that heat enhances the process.

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