All combustion reactions are exothermic.
Enthalpies of products are greater than enthalpies of reactants `(Sigmav_(p)Delta_(f)H(P)gtSigmav_(R)Delta_(f)H(R))`

Options

A. If both the statements are TRUE and STATEMENT-2 is the correct explanation of STATEMENT-14
B. If both the statements are TRUE but STATEMENT-2 is NOT the correct explanation of STATEMENT-14
C. If STATEMENT-1 is TRUE and STATEMENT-2 is FALSE
D. If STATEMENT-1 is FALSE and STATEMENT-2 is TRUE

Answer

To solve the question, we need to analyze the statements regarding combustion reactions and their enthalpy changes.

### Step-by-Step Solution:

1. **Understanding Combustion Reactions**:
- Combustion reactions involve the reaction of a substance (usually a hydrocarbon) with oxygen, resulting in the production of carbon dioxide and water, along with the release of energy.
- These reactions are characterized as exothermic, meaning they release heat.

2. **Defining Enthalpy Change (ΔH)**:
- The change in enthalpy (ΔH) for a reaction is calculated using the formula:
\[ \Delta H = \Sigma v_p \Delta_f H(P) - \Sigma v_R \Delta_f H(R) \]
- Here, \( \Sigma v_p \) and \( \Sigma v_R \) represent the stoichiometric coefficients of the products and reactants, respectively, and \( \Delta_f H \) represents the standard enthalpy of formation.

3. **Analyzing the First Statement**:
- The first statement claims that "All combustion reactions are exothermic." This is true because combustion reactions release energy in the form of heat.
- Therefore, we can conclude that this statement is correct.

4. **Analyzing the Second Statement**:
- The second statement claims that "Enthalpies of products are greater than enthalpies of reactants."
- For exothermic reactions, the enthalpy of the products is actually lower than that of the reactants. This is because energy is released during the reaction, resulting in a decrease in the overall enthalpy.
- Thus, this statement is false.

5. **Conclusion**:
- The first statement is true, while the second statement is false. Therefore, we can summarize our findings as follows:
- Statement 1: True
- Statement 2: False

### Final Answer:
- All combustion reactions are exothermic (True).
- Enthalpies of products are greater than enthalpies of reactants (False).

---