1. (a) Determine AH (kJ/mol) using Hess's law for the following reaction using the listed enthalpies of reaction:N₂H.(1) + 2 H₂O₂(g) →N₂(g) + 4H₂O(1)N₂HL (1) + O₂(g)N₂(g) + 2 H₂O(1)H₂(g) + 1/2O₂(g) →→ H₂O(1)AH/kJ=-622.3 kJAH%/kJ = -285.8 kJAH/kJ = -187.8 kJH₂(g) + O₂(g)H₂O₂(1)b. Explain what is Hess's law and why it is an appropriate method to find AH in (a)?c. Using AH from (a) how many moles of water could be heated from 20.0° C to 45.0° C by the heat produced from thereaction? #₂04.184 kJ/kg. °C

The study of thermochemistry examines the heat energy involved in chemical processes and/or phase…

1. (a) Determine AH (kJ/mol) using Hess's law for the following reaction using the listed enthalpies of reaction: N₂H.(1) + 2 H₂O₂(g) →N₂(g) + 4H₂O(1) N₂HL (1) + O₂(g) N₂(g) + 2 H₂O(1) H₂(g) + 1/2 O(g) → H₂O(1) H₂O₂(1) AH/kJ=-622.3 kJ AH%/kJ = -285.8 kJ AH/kJ = -187.8 kJ H₂(g) + O₂(g) b. Explain what is Hess's law and why it is an appropriate method to find AH in (a)? c. Using AH from (a) how many moles of water could be heated from 20.0° C to 45.0° C by the heat produced from the reaction? #₂0 = 4.184 kJ/kg.

1. (a) Determine AH (kJ/mol) using Hess's law for the following reaction using the listed enthalpies of reaction: N₂H.(1) + 2 H₂O₂(g) →N₂(g) + 4H₂O(1) N₂HL (1) + O₂(g) N₂(g) + 2 H₂O(1) H₂(g) + 1/2 O(g) → H₂O(1) H₂O₂(1) AH/kJ=-622.3 kJ AH%/kJ = -285.8 kJ AH/kJ = -187.8 kJ H₂(g) + O₂(g) b. Explain what is Hess's law and why it is an appropriate method to find AH in (a)? c. Using AH from (a) how many moles of water could be heated from 20.0° C to 45.0° C by the heat produced from the reaction? #₂0 = 4.184 kJ/kg.

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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