SC-1406
Conduction
Lower Sec Science · Secondary 2 · Hard · Conduction
A vacuum flask has a layer of foam plastic between its inner and outer walls.
With reference to heat transfer, explain why foam plastic is used.
With reference to heat transfer, explain why foam plastic is used.
- It is a poor conductor of heat and reduces heat loss by conduction.
- It is a good conductor of heat and allows heat to escape quickly.
- It increases heat transfer by convection through the walls.
- It allows heat to be lost only by radiation.
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