Question
A student is planning to make an insulated lunch bag. The table shows the materials they can choose from.
Material | Specific Heat (J/g?C)
artificial wool | 1.357
cotton | 1.300
cork | 2.000
Using the specific heats in the table, which two materials would be the best materials for their lunch bag?
A. the material with the lowest specific heat
B. the material with the highest specific heat
C. the artificial wool because it has the highest specific heat
D. the cork because it takes less heat to raise its temperature
E. the cork because it takes more heat to raise its temperature
F. the cotton because it takes more heat to raise its temperature
you need to pick TWO!!!!!!!!!
Material | Specific Heat (J/g?C)
artificial wool | 1.357
cotton | 1.300
cork | 2.000
Using the specific heats in the table, which two materials would be the best materials for their lunch bag?
A. the material with the lowest specific heat
B. the material with the highest specific heat
C. the artificial wool because it has the highest specific heat
D. the cork because it takes less heat to raise its temperature
E. the cork because it takes more heat to raise its temperature
F. the cotton because it takes more heat to raise its temperature
you need to pick TWO!!!!!!!!!
Answers
GPT-4o mini
To determine the best materials for an insulated lunch bag based on specific heat, we should look for materials that can minimize temperature changes. Higher specific heat values indicate that the material can absorb more heat without a significant increase in temperature, making them better insulators.
From the table:
- Artificial wool: 1.357 J/g°C
- Cotton: 1.300 J/g°C
- Cork: 2.000 J/g°C
Among these, cork has the highest specific heat (2.000 J/g°C), which means it can absorb a lot of heat without significantly increasing in temperature. Therefore, it would be a great option for insulation.
Artificial wool also has a relatively high specific heat compared to cotton and would provide good insulation as well.
Based on this reasoning, the best combination of materials for the insulated lunch bag would be cork and artificial wool.
Thus, the answer should be **B** (the material with the highest specific heat, which is cork) and the best alternative **A** (the material with the second-lowest specific heat, which is artificial wool).
From the table:
- Artificial wool: 1.357 J/g°C
- Cotton: 1.300 J/g°C
- Cork: 2.000 J/g°C
Among these, cork has the highest specific heat (2.000 J/g°C), which means it can absorb a lot of heat without significantly increasing in temperature. Therefore, it would be a great option for insulation.
Artificial wool also has a relatively high specific heat compared to cotton and would provide good insulation as well.
Based on this reasoning, the best combination of materials for the insulated lunch bag would be cork and artificial wool.
Thus, the answer should be **B** (the material with the highest specific heat, which is cork) and the best alternative **A** (the material with the second-lowest specific heat, which is artificial wool).