Topic Details (Notes format)

Thermochemistry

Subject: General Science

Book: NCERT Chemistry Class 12

Study of heat changes in chemical reactions.
- **Enthalpy and Internal Energy**:
- Relationship and measurement.
- **Hess’s Law**:
- Heat of reaction calculation.
- **Bond Enthalpy**:
- Energy changes in bond formation.

**Possible Exam Questions:**
1. Define enthalpy and explain its significance.
2. What is Hess’s law? How is it applied in thermochemistry?
3. Explain the concept of bond enthalpy.
4. How does heat capacity affect thermochemical reactions?
5. Differentiate between endothermic and exothermic reactions.

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