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For the reaction, H2Om H2Otg), calculate AG at a) 20°C, b) 100°C and c) 150°C. Calculote

For the reaction, H2Om H2Otg), calculate AG at a) 20°C, b) 100°C and c) 150°C. Calculote

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Please answer numbers 1 and 2. Thank you!
Learning Task 4 1. For the reaction, H2Om→H2Oig), calculate AG at a) 20°C, b) 100°C and c) 150°C. 2. Calculate the standard-free energy changes for the reaction 2MgOs) + 2Mgis) + O2ig) at 25°C. What is the significance of the Second Law of Thermodynamics? Chemical processes tend to favor one direction. Every day, we observed spontaneous physical and chemical processes such as iron when exposed to water and oxygen forms rust, but rust does not spontaneously change back to iron. Heat flows from a hotter object to a colder one, but the reverse process never happens spontaneousły. A spoon of sugar dissolved in a cup of coffee, but the dissolved sugar does not crystallize spontaneously. Many biochemical reactions are nonspontaneous, with a positive AG° value, but they are essential for life to exist. These reactions are coupled to an energetically favorable mechanism in living systems, one with a negative AG° value. During metabolism, glucose is converted to carbon dioxide and water, releasing a significant amount of free energy.
Transcribed Image Text:Learning Task 4 1. For the reaction, H2Om→H2Oig), calculate AG at a) 20°C, b) 100°C and c) 150°C. 2. Calculate the standard-free energy changes for the reaction 2MgOs) + 2Mgis) + O2ig) at 25°C. What is the significance of the Second Law of Thermodynamics? Chemical processes tend to favor one direction. Every day, we observed spontaneous physical and chemical processes such as iron when exposed to water and oxygen forms rust, but rust does not spontaneously change back to iron. Heat flows from a hotter object to a colder one, but the reverse process never happens spontaneousły. A spoon of sugar dissolved in a cup of coffee, but the dissolved sugar does not crystallize spontaneously. Many biochemical reactions are nonspontaneous, with a positive AG° value, but they are essential for life to exist. These reactions are coupled to an energetically favorable mechanism in living systems, one with a negative AG° value. During metabolism, glucose is converted to carbon dioxide and water, releasing a significant amount of free energy.
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