Hess's Law states that the total enthalpy change for a chemical reaction is independent of the pathway taken, as long as the initial and final conditions are the same.

April 6, 2026Chemistry

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2 stepsApril 6, 2026

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-1370 \text{ kJ/mol}$

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a) (i) Hess's Law states that the total enthalpy change for a chemical reaction is independent of the pathway taken, as long as the initial and final conditions are the same.

(ii) We are given the following reactions and their enthalpy changes:

$\text{C}_2H_5OH(l) + 3O_2(g) \to 2CO_2(g) + 3H_2O(l)$ $\Delta H_1 = -1370 \text{ kJ/mol}$
$\text{C}_

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Here's the solution to your question: a) (i) Hess's Law states that the total enthalpy change for a chemical reaction is independent of the pathway taken, as long as the initial and final conditions are the same.

Asked on April 6, 2026Chemistry

This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.

ScanSolve AI AnswerAnswered on April 6, 2026

Here's the solution to your question: a) (i) Hess's Law states that the total enthalpy change for a chemical reaction is independent of the pathway taken, as long as the initial and final conditions are the same. (ii) We are given the following reactions and their enthalpy changes: 1. C_2H_5OH(l) + 3O_2(g) 2CO_2(g) + 3H_2O(l) H_1 = -1370 kJ/mol 2. $C_