Calculate the standard enthalpy change for the reaction 2A +B= 2C+ 2D where the heats of formation are given in the following table: ΔΗΡ |(kJ/mol) Substance A -239 В -383 C 185 D -507 Express your answer in kilojoules.

Calculate the standard enthalpy change for the reaction 2A +B= 2C+ 2D where the heats of formation are given in the following table: ΔΗΡ |(kJ/mol) Substance A -239 В -383 C 185 D -507 Express your answer in kilojoules.

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

The answer to the question provided in the picture is 217 kJ.

For the reaction given in Part A, how much heat is absorbed when 3.50 mol of A reacts?

Calculate the standard enthalpy change for the reaction
2A +B = 20+2D
where the heats of formation are given in the following table:
ΔΗ
(kJ/mol)
Substance
A
-239
В
-383
C
185
-507
Express your answer in kilojoules.

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