How is heat transferred in a vacuum oven?

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The vacuum oven has most heat transfer happen by conduction and radiation in it. Without air present, convection doesn&#x27;t come into play. Heating elements heat the oven&#x27;s walls and shelves. Heat from metal surfaces to the sample is transferred by direct contact (conduction). The direct contact of the sample with the heated surface is most effective in this regard. Radiation comes into play. The heating elements and walls radiate their infrared heat, which traverses the vacuum to reach the sample. Dark or rough surfaces absorb this heat better than bright or shiny ones. Because of the lack of air, convection causes slower heat transmission than a standard oven. The vacuum also helps to lower the boiling point of liquids, which aids drying. Vacuum ovens can dry heat-sensitive materials. They also prevent oxidation and contamination. They are therefore used by scientists and industries to dry, cure, and test materials. Correct placement of samples enhances heat transfer and drying.

Q. How is heat transferred in a vacuum oven?

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