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Chemistry, 16.11.2020 23:40 powberier6979
Lava often flows into the ocean from volcanoes. A student wants to know how much water would be needed to
cool a small sample of lava to 100°C. She calculates that the water would need to absorb 2,000 kJ of energy to
cool the lava. She also finds the information in the table.
Temperature of ocean water 26.0°C
Specific heat of water 4.186 kJ/kg°C
Use the equation q= mc^T to calculate the mass of water needed to cool the lava.
A
3.79 kg
B
4.78 kg
С
6.46 kg
D
18.4 kg
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