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6 November, 01:04

As part of his meal, a workman has a cup containing a hot drink.

In order to keep the drink hot whilst he eats the rest of his meal, he covers the cup, as shown in

the figure.

Which sources of energy loss does this action reduce? Tick two boxes.

convection from the surface of the liquid

evaporation from the surface of the liquid

conduction through the cup

radiation from the surface of the cup

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Answers (1)
  1. 6 November, 04:56
    0
    The second one since convection is the process by which heat is transferred from a solid surface to a non solid
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