Task 3.2. Calculate the standard enthalpy of reaction of some thermochemical equations governed by Hess Law.Direction: Solve the following items. Show complete solution. Express all standard enthalpy to kilojoules.1. Calculate AH for the reaction 4 NH3 (2) + 5 O2 (2) → 4 NO (» + 6 H2O (2), from the following data.| N2 (2) + O2 (2) → 2 NO (2)N2 () + 3 H2 (» → 2 NH3 (2)2 H2 (e + O2 (2 → 2 H2O eAH = -180.5 kJAH = -91.8 kJAH = -483.6 kJ2. Find AH° for the reaction 2H2(e) + 2C0 + Oze → CH;OH, using the following thermochemical data.AH = -875. kJAH = -394.51 kJAH = -285.8 kJ| CH;OH ) + 2 O2 (e) → 2 CO2 2) + 2 H2O )C (6) + O2 (e) → CO2 (eH2 (2 + ½ O2 (e → H2O m3. Calculate AH for the reaction CH4 (e) + NH3 (2) → HCN (2) + 3 H2 (), given:N2 + 3 H2 → 2 NH3 2)C) + 2 H2 (e → CH4 (e)H2 (2) + 2 C (0) + N2 2) → 2 HCN (2)AH = -91.8 kJAH = -74.9 kJAH = +270.3 kJ

According to Hess law overall energy can be determined for a chemical reaction and total enthalpy…

ulate the standard enthalpy of reaction of some thermochemical equations governed by Hess Law. rection: Solve the following items. Show complete solution. Express all standard enthalpy to kilojoules. Calculate AH for the reaction 4 NH3 () + 5 O2 (7) → 4 NO () + 6 H2O (2), from the following data. N2 ( + O2 (e) → 2 NO (2) N2 (2) + 3 H2 (2 → 2 NH3 (2) 2 H2 (2 + O2 e → 2 H2O (2) AH = -180.5 kJ AH = -91.8 kJ AH = -483.6 kJ Find AH° for the reaction 2H2(2) + 2Co + Oz → C2H$OH), using the following thermochemical data. AH = -875. kJ CH$OH () + 2 O2 (e → 2 CO2 e) + 2 H2O m C () + O2 (2) → CO2 (2. H2 (2) + ½ O2 @ → H2O m AH = -394.51 kJ AH = -285.8 kJ

ulate the standard enthalpy of reaction of some thermochemical equations governed by Hess Law. rection: Solve the following items. Show complete solution. Express all standard enthalpy to kilojoules. Calculate AH for the reaction 4 NH3 () + 5 O2 (7) → 4 NO () + 6 H2O (2), from the following data. N2 ( + O2 (e) → 2 NO (2) N2 (2) + 3 H2 (2 → 2 NH3 (2) 2 H2 (2 + O2 e → 2 H2O (2) AH = -180.5 kJ AH = -91.8 kJ AH = -483.6 kJ Find AH° for the reaction 2H2(2) + 2Co + Oz → C2H$OH), using the following thermochemical data. AH = -875. kJ CH$OH () + 2 O2 (e → 2 CO2 e) + 2 H2O m C () + O2 (2) → CO2 (2. H2 (2) + ½ O2 @ → H2O m AH = -394.51 kJ AH = -285.8 kJ

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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