To determine which substance would heat up the slowest when exposed to sunlight for the same amount of time, we need to consider their specific heat capacities. A substance with a higher specific heat capacity can absorb more heat without experiencing a significant change in temperature.
Here's the given specific heat values for each substance:
- Brick: [tex]\(0.9 \, J/g^{\circ}C\)[/tex]
- Dry soil: [tex]\(1.26 \, J/g^{\circ}C\)[/tex]
- Paper: [tex]\(1.336 \, J/g^{\circ}C\)[/tex]
- Water: [tex]\(4.18 \, J/g^{\circ}C\)[/tex]
We need to compare these values to find the highest specific heat capacity, as this indicates the substance that will heat up the slowest.
After comparing:
- Brick: [tex]\(0.9 \, J/g^{\circ}C\)[/tex]
- Dry soil: [tex]\(1.26 \, J/g^{\circ}C\)[/tex]
- Paper: [tex]\(1.336 \, J/g^{\circ}C\)[/tex]
- Water: [tex]\(4.18 \, J/g^{\circ}C\)[/tex]
We see that water has the highest specific heat capacity of [tex]\(4.18 \, J/g^{\circ}C\)[/tex].
Therefore, the substance that will heat up the slowest is water.
The correct answer is:
A. water
