Answered: A chemical engineer is studying the two…

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

A chemical engineer is studying the two reactions shown in the table below.

In each case, he fills a reaction vessel with some mixture of the reactants and products at a constant temperature of

34.0°C

and constant total pressure. Then, he measures the reaction enthalpy

ΔH

and reaction entropy

ΔS

of the first reaction, and the reaction enthalpy

ΔH

and reaction free energy

ΔG

of the second reaction. The results of his measurements are shown in the table.

Complete the table. That is, calculate

ΔG

for the first reaction and

ΔS

for the second. (Round your answer to zero decimal places.) Then, decide whether, under the conditions the engineer has set up, the reaction is spontaneous, the reversereaction is spontaneous, or neither forward nor reverse reaction is spontaneous because the system is at equilibrium.

→+P4O10s6H2Ol4H3PO4s	=ΔH−439.kJ
=ΔS−1401.JK
=ΔGkJ
Which is spontaneous?
this reaction
the reverse reaction
neither
→+CO2g2H2Og+CH4g2O2g	=ΔH803.kJ
=ΔSJK
=ΔG8.kJ
Which is spontaneous?
this reaction
the reverse reaction
neither

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