18) What is AH°,for the following reaction?18)rxn2H2O2(1) → 2H2O(1) + O2(g)AH°f(H2O(1)) =-285.8 kJ/mol, AH°f(H2O2(1)) =-187.6 kJ/molA) 98.2 kJ/molB) -946.8 kJ/molC) –196.4 kJ/molD) –473.4 kJ/molE) -98.2 kJ/mol

Standard enthalpy of formation of O2 will be equal to 0

18) What is AH°rxn for the following reaction? 2H2O2(1) →2H2O(1) + O2(g) AH®{{H2O(1)) =-285.8 kJ/mol, AH°f(H2O2(1)) =-187.6 kJ/mol A) 98.2 kJ/mol B) -946.8 kJ/mol C) –196.4 kJ/mol D) -473.4 kJ/mol E) -98.2 kJ/mol

18) What is AH°rxn for the following reaction? 2H2O2(1) →2H2O(1) + O2(g) AH®{{H2O(1)) =-285.8 kJ/mol, AH°f(H2O2(1)) =-187.6 kJ/mol A) 98.2 kJ/mol B) -946.8 kJ/mol C) –196.4 kJ/mol D) -473.4 kJ/mol E) -98.2 kJ/mol

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy

Section18.4: Entropy Measurement And Values

Problem 3RC: Calculate rS for the following reaction at 25 C. 2 H2(g) + O2(g) 2 H2O() (a) 326.6 J/K mol-rxn...

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18) What is AH°,
for the following reaction?
18)
rxn
2H2O2(1) → 2H2O(1) + O2(g)
AH°f(H2O(1)) =-285.8 kJ/mol, AH°f(H2O2(1)) =-187.6 kJ/mol
A) 98.2 kJ/mol
B) -946.8 kJ/mol
C) –196.4 kJ/mol
D) –473.4 kJ/mol
E) -98.2 kJ/mol

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