In an exothermic reaction, what happens to the energy of the surroundings?
- A. It increases as heat is released from the system ✓
- B. It decreases as heat is absorbed by the system
- C. It remains unchanged throughout the reaction
- D. It becomes impossible to measure
Correct answer
A. It increases as heat is released from the system
Explanation
In an exothermic reaction, the system releases energy (usually as heat) into the surroundings, increasing the surroundings' energy/temperature.
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