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1 mole of CH4 (1 bar, 50°C) is mixed with 1 mole of 02 (1 bar, 50°C) to form a mixture at 2 bar and 50°C. The Entropy change is

1 mole of CH4 (1 bar, 50°C) is mixed with 1 mole of 02 (1 bar, 50°C) to form a mixture at 2 bar and 50°C. The Entropy change is

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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**Entropy Change in Mixing Gases** When 1 mole of CH4 (Methane) at 1 bar and 50°C is mixed with 1 mole of O2 (Oxygen) at 1 bar and 50°C, they form a mixture at 2 bar and 50°C. To determine the entropy change (\( \Delta S \)) of this process, consider the following options: a. Positive b. Negative c. Zero **Diagram Explanation:** - The diagram illustrates the mixing process. On the left, CH4 gas at 1 bar and 50°C is represented with an arrow pointing towards a container. - On the right, O2 gas at 1 bar and 50°C is depicted with another arrow pointing towards the same container. - The container in the center shows the mixture of the gases, labeled as having a pressure of 2 bar and a temperature of 50°C. When gases mix, there is generally an increase in entropy due to the increased randomness and dispersion of the gas molecules. Thus, the entropy change (\( \Delta S \)) for this mixing process is expected to be **positive**.
Transcribed Image Text:**Entropy Change in Mixing Gases** When 1 mole of CH4 (Methane) at 1 bar and 50°C is mixed with 1 mole of O2 (Oxygen) at 1 bar and 50°C, they form a mixture at 2 bar and 50°C. To determine the entropy change (\( \Delta S \)) of this process, consider the following options: a. Positive b. Negative c. Zero **Diagram Explanation:** - The diagram illustrates the mixing process. On the left, CH4 gas at 1 bar and 50°C is represented with an arrow pointing towards a container. - On the right, O2 gas at 1 bar and 50°C is depicted with another arrow pointing towards the same container. - The container in the center shows the mixture of the gases, labeled as having a pressure of 2 bar and a temperature of 50°C. When gases mix, there is generally an increase in entropy due to the increased randomness and dispersion of the gas molecules. Thus, the entropy change (\( \Delta S \)) for this mixing process is expected to be **positive**.
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