An ideal gas mixture at T₁-300 K, p₁-6 bar, and V₁=20 liters is isothermally expanded to V₂=40 litters against a constant external pressure of 3 bar. Neglect the effects of piston acceleration. Determine the change in international energy (in J), the work (in J), the heat (in J), the change in entropy (in J/K) for this process. Is the Second Law of Thermodynamics satisfied?

An ideal gas mixture at T₁-300 K, p₁-6 bar, and V₁=20 liters is isothermally expanded to V₂=40 litters against a constant external pressure of 3 bar. Neglect the effects of piston acceleration. Determine the change in international energy (in J), the work (in J), the heat (in J), the change in entropy (in J/K) for this process. Is the Second Law of Thermodynamics satisfied?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Properties of Pure Substances

A substance with fixed chemical composition throughout is called a pure substance like water, air, and nitrogen. A pure substance does not have to be a single element or compound. A mixture of two or more phases of a pure substance is also a pure substance as long as the chemical composition is the same for all phases. These substances mainly have a constant/ uniform composition. The substances also have fixed boiling and melting points. A pure substance takes part in a chemical reaction to form predictable products.

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**Problem Statement: Ideal Gas Mixture Expansion**

An ideal gas mixture at \( T_1 = 300 \, \text{K} \), \( p_1 = 6 \, \text{bar} \), and \( V_1 = 20 \, \text{liters} \) is isothermally expanded to \( V_2 = 40 \, \text{liters} \) against a constant external pressure of 3 bar. Neglect the effects of piston acceleration. Determine the change in internal energy (in J), the work (in J), the heat (in J), the change in entropy (in J/K) for this process. Is the Second Law of Thermodynamics satisfied?

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