Question detail
Which of the following would most likely increase the thermal conductivity of a building wall?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Conservation and dissipation of energy
Question
- A. Adding a layer of foam insulation
- B. Replacing brick with concrete blocks
- C. Installing double‑glazed windows
- D. Using a material with a higher specific heat capacity
Answer
Replacing brick with concrete blocks
Explanation
Concrete has a higher thermal conductivity than brick, so replacing brick with concrete would increase heat transfer through the wall. Foam insulation and double‑glazing reduce conductivity, and specific heat capacity does not directly affect conductivity.
Common mistake
Misunderstanding Thermal Insulation
Students often think that all materials are equally effective at insulating, without considering their thermal conductivity.
To fix this, students should investigate and compare the thermal conductivity of different materials, understanding that lower thermal conductivity indicates better insulation properties.
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