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Chapter 16: Problem 5

Why does the temperature in a stone building usually vary less than in a wooden building?

Short Answer

Expert verified
The temperature in a stone building varies less than in a wooden one due to stone's higher heat capacity and lower thermal conductivity, allowing it to store more heat and transfer it more slowly than wood, which leads to less temperature variation.

Step by step solution

01

Understand the Material Properties

Stone is a dense material with a high heat capacity and relatively low thermal conductivity, meaning it can store a lot of heat energy and it transfers heat slowly across its mass. Wood, on the other hand, has a lower heat capacity and higher thermal conductivity, meaning it cannot store as much heat energy and it transfers heat quickly across its mass.
02

Relate the Properties to Temperature Variation

Due to the high heat capacity of stone, it can absorb a lot of heat during the warm part of the day without experiencing a large increase in temperature. Similarly, it slowly releases the absorbed heat during the cool part of the day, causing the temperature to remain relatively constant. In contrast, wood absorbs and releases heat quickly, leading to greater fluctuations in temperature.
03

Conclusion

The difference in temperature variation between stone and wooden buildings is due to the difference in their material properties - particularly heat capacity and thermal conductivity.

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