please .part b! Part AChemical energy is released or absorbed from reactions invarious forms. The most easily measurable form of energycomes in the form of heat, or enthalpy. The enthalpy of areaction can be calculated from the heats of formation of theCalculate the standard enthalpy change for the reaction2A +B= 2C+ 2Dsubstances involved in the reaction:Use the following data:Δ,ΗΣ n Δ Η (products) -Ση, Δ; Η' reactants)where n represents the stoichiometric coefficients.Af H°(kJ mol-1)SubstanceA-233В-391C181D-477Express your answer to three significant figures and include the appropriate units.• View Available Hint(s)A;H° =265 kJ.mol-1SubmitPrevious AnswersCorrect Part BFor the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts?Express your answer to three significant figures and include the appropriate units.• View Available Hint(s)Templates Symbols undo rédo reset keyboard shortcuts helpValueUnitsSubmit

Given: ∆fH°(A) = -233 kJ/mol ∆fH°(B) = -391 kJ/mol ∆fH°(C) = 181 kJ/mol ∆fH°(D) = -477 kJ/mol

Answered: For the reaction given in Part A, how…

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For the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts?

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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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.

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Question

please .part b!

Part A
Chemical energy is released or absorbed from reactions in
various forms. The most easily measurable form of energy
comes in the form of heat, or enthalpy. The enthalpy of a
reaction can be calculated from the heats of formation of the
Calculate the standard enthalpy change for the reaction
2A +B= 2C+ 2D
substances involved in the reaction:
Use the following data:
Δ,ΗΣ n Δ Η (products) -Ση, Δ; Η' reactants)
where n represents the stoichiometric coefficients.
Af H°
(kJ mol-1)
Substance
A
-233
В
-391
C
181
D
-477
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
A;H° =
265 kJ.mol-1
Submit
Previous Answers
Correct

Part B
For the reaction given in Part A, how much heat is absorbed when 3.70 mol of A reacts?
Express your answer to three significant figures and include the appropriate units.
• View Available Hint(s)
Templates Symbols undo rédo reset keyboard shortcuts help
Value
Units
Submit

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