Two identical pans are maintained at 300°F and 400°F on a burner. A half ounce of water is added to each pan. How much faster does the water in the 400°F evaporate than the 300°F pan?

Two identical pans are maintained at 300°F and 400°F on a burner. A half ounce of water is added to each pan. How much faster does the water in the 400°F evaporate than the 300°F pan?
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