To solve the problem of determining which substance would heat up the slowest when exposed to sunlight for the same amount of time, we need to analyze the specific heat values given in the table. Specific heat is a property that indicates the amount of energy required to raise the temperature of 1 gram of a substance by 1 degree Celsius.
The specific heat values provided in the table are:
- Brick: [tex]\(0.9 \frac{J}{g^{\circ}C}\)[/tex]
- Dry soil: [tex]\(1.26 \frac{J}{g^{\circ}C}\)[/tex]
- Paper: [tex]\(1.336 \frac{J}{g^{\circ}C}\)[/tex]
- Water: [tex]\(4.18 \frac{J}{g^{\circ}C}\)[/tex]
A substance with a higher specific heat will require more energy to increase its temperature, meaning it will heat up more slowly compared to a substance with a lower specific heat.
Here is the comparison:
- Brick: [tex]\(0.9 \frac{J}{g^{\circ}C}\)[/tex]
- Dry Soil: [tex]\(1.26 \frac{J}{g^{\circ}C}\)[/tex]
- Paper: [tex]\(1.336 \frac{J}{g^{\circ}C}\)[/tex]
- Water: [tex]\(4.18 \frac{J}{g^{\circ}C}\)[/tex]
Among these specific heat values, water has the highest specific heat ([tex]\(4.18 \frac{J}{g^{\circ}C}\)[/tex]). Therefore, water will heat up the slowest because it requires the most energy to raise its temperature.
The correct answer is:
A. water
