STARTING AMOUNTXWhat is the change in enthalpy when 0.350 moles of B₂H6 react with excess O₂according to the following blanced chemical reacton:H₂O(g)27.67g B₂O3ADD FACTORx( )69.62mol B₂O3B₂H6(g) + 3-2035237g B₂H₁O₂(g) → B₂O3(s) + 3AH = -2035 KJ7120.350g 0₂J1ANSWER-712KJmol B₂H63-237g H₂ORESET518.02mol O₂32.00mol H₂O

The given reaction is ; B2H6(g) + 3O2(g) --> B2O3(g) + 3H2O And enthalpy change of that given…

Answered: What is the change in enthalpy when…

What is the change in enthalpy when 0.350 moles of B₂H6 react with excess O₂ according to the following blanced chemical reacton: B₂H6(g) + 3 O₂(g) → B₂O3(s) + 3 H₂O(g) ΔΗ = -2035 | J

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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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

STARTING AMOUNT
X
What is the change in enthalpy when 0.350 moles of B₂H6 react with excess O₂
according to the following blanced chemical reacton:
H₂O(g)
27.67
g B₂O3
ADD FACTOR
x( )
69.62
mol B₂O3
B₂H6(g) + 3
-2035
237
g B₂H₁
O₂(g) → B₂O3(s) + 3
AH = -2035 KJ
712
0.350
g 0₂
J
1
ANSWER
-712
KJ
mol B₂H6
3
-237
g H₂O
RESET
5
18.02
mol O₂
32.00
mol H₂O

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