Burning of fuel is:
Correct answer: B. Exothermic
- A. Endothermic
- B. Exothermic
- C. Both a and b
- D. None of these
Explanation
The burning of fuel is an exothermic process. During combustion, the chemical bonds in the fuel molecules break, and new bonds are formed in the products (usually carbon dioxide and water). The overall reaction releases energy in the form of heat and light.
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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
728 free Thermochemistry and Energetics of Chemical Reactions MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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