Lead(II) oxide can be reduced to form elemental lead through the reaction:\[ \text{PbO}(s) + \text{C}(s) \rightarrow \text{Pb}(s) + \text{CO}(g) \]Calculate \(\Delta H^\circ\) for the above reaction given the following (all values are at \(25^\circ \text{C}\)): **Thermochemical Equation Manipulation**In this example, we will explore how to manipulate thermochemical equations to find the enthalpy change (\( \Delta H^\circ \)) for a given reaction.1. **Reaction Equations and \(\Delta H^\circ\):** - Equation 1: \[ 2 \, \text{CO}(g) + \cancel{\text{O}_2(g)} \rightarrow 2 \, \text{CO}_2(g) \quad \Delta H^\circ = -566.0 \, \text{kJ} \] - Equation 2: \[ 2 \, \text{NO}(g) \rightarrow \text{N}_2(g) + \cancel{\text{O}_2(g)} \quad \Delta H^\circ = -180.5 \, \text{kJ} \]2. **Overall Reaction:** The overall chemical reaction is derived by combining the above equations and eliminating common species on both sides: \[ 2 \, \text{CO}(g) + 2 \, \text{NO}(g) \rightarrow 2 \, \text{CO}_2(g) + \text{N}_2(g) \]3. **Overall Enthalpy Change:** The overall enthalpy change is the sum of the enthalpy changes from each individual reaction: \[ \Delta H^\circ = -746.5 \, \text{kJ} \]This demonstrates the principle of Hess's Law, where the total enthalpy change is the sum of the enthalpy changes of individual steps, allowing you to calculate the enthalpy for a desired reaction from known values.

Interpretation - To determine the the enthalpy of the reaction at 25oC where lead oxide can be reduced to form elemental led through the given reaction . Concept- To determine the enthalpy of the reaction at 25oC here we use the formula - Enthalpy of reaction =∑np∆HProduct - ∑nR∆HReactant Here - np = number of mole of product nR = number of mole of reactant ∆H = enthalpy

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Lead(II) oxide can be reduced to form elemental lead through the reaction: PbO(s) + C(s) → Pb(s) + CO(g) Calculate AH° for the above reaction given the following (all values are at 25°C):

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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