C What is the new value of A, Hᵒ for Reaction 1, as now written?Original:New:A, HⓇ4 B(s) + 3 O₂(g) → 2 B₂O3 (s) A₁H° = -2543.8 kJ/mol-rxn2 B(s) + 3/2 O₂(g) → B₂O3(s) ▲,H° = ?=kJ/mol-rxn This question has multiple parts. Work all the parts to get the most points.The standard molar enthalpy of formation of diborane, B₂H₁ (g), cannot be determined directly because the compound cannot be prepared by the reaction of boronand hydrogen. It can be calculated from other enthalpy changes, however. The following enthalpy changes can be measured.4 B(s) + 3 O₂(g) → 2 B₂ O3 (s)A, H = -2543.8 kJ/mol-rxnH₂(g) + 1/2 O₂ (g) → H₂O(g)▲,H° = −241.8 kJ/mol-rxnB2 H6 (g) + 3 O2 (g) → B2 O3 (g) + 3 H₂O(g) A₁H° = −2032.9 kJ/mol-rxn

Answered: Image /qna-images/answer/4dd468d9-6410-4428-a55a-79329a2309ef.jpg

CWhat is the new value of A, H for Reaction 1, as now written? Original: New: 4 B(s) + 3 O₂(g) → 2 B₂O3(s) AH = -2543.8 kJ/mol-rxn 2 B(s) + 3/2 O₂(g) → B₂O3(s) ▲,H° = ? A, HⓇ = kJ/mol-rxn

CWhat is the new value of A, H for Reaction 1, as now written? Original: New: 4 B(s) + 3 O₂(g) → 2 B₂O3(s) AH = -2543.8 kJ/mol-rxn 2 B(s) + 3/2 O₂(g) → B₂O3(s) ▲,H° = ? A, HⓇ = kJ/mol-rxn

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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Question

C What is the new value of A, Hᵒ for Reaction 1, as now written?
Original:
New:
A, HⓇ
4 B(s) + 3 O₂(g) → 2 B₂O3 (s) A₁H° = -2543.8 kJ/mol-rxn
2 B(s) + 3/2 O₂(g) → B₂O3(s) ▲,H° = ?
=
kJ/mol-rxn

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