Mathematics · Mensuration
A styrofoam sheet of thickness 5 cm and area 0.25 m2 has a temperature difference of 40°C between its inner and outer surfaces. The rate of heat flow through the sheet [where thermal conductivity is 0.01 J/(s m K)] is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12.0 J/s✓
- 21.0 J/s
- 33.0 J/s
- 44.0 J/s
Correct answer
2.0 J/s
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