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NTS - NAT IGS Test - Chemistry - Thermochemistry - Quiz 2

Practice 10 high yield MCQs on Chemistry from Chapter Thermochemistry for NAT IGS Test. After submission, get instant results with correct answers and detailed explanations. This is Quiz 2 of the series.

11. What does Hess's law state?



12. Which conservation law is Hess's law based on?



13. What is the application of Hess's law?



14. A → B: ΔH = +100 kJ; B → C: ΔH = -50 kJ. What is ΔH for A → C?



15. Is enthalpy a state function?



16. What is bond energy?



17. Is breaking a bond endothermic or exothermic?



18. What is the approximate bond energy of a C-H bond?



19. What is the approximate bond energy of an O-H bond?



20. How is enthalpy change estimated using bond energies?



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Instructions: Select one answer per question. After submitting, you will see your score, correct answers, and explanations.

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