Temperature of the surrounding falls during?
Correct answer: A. Endothermic reactions
- A. Endothermic reactions
- B. Exothermic reactions
- C. Exergonic reactions
- D. None of these
Explanation
A is correct as in an Endothermic Reaction, the system will absorb heat from the surrounding, hence decreasing its temperature. Whereas in an Exothermic Reaction heat is given off by the system to the surrounding hence the temperature of the surrounding is increased.
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About Exothermic and Endothermic Reactions
Exothermic reactions release heat to the surroundings and have negative enthalpy change, while endothermic reactions absorb heat and have positive enthalpy change. The topic uses energy profiles to identify reactants, products and activation energy, and includes bond energy, enthalpy diagrams, calorimetry and Hess's law for calculating overall heat changes.
Practise Thermochemistry and Energetics of Chemical Reactions
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