Two kilograms of air within a piston-cylinder assembly execute a Carnot power cycle withmaximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer tothe air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion thevolume is 0.4 m³. Assuming the ideal gas model for the air, determine(a) the thermal efficiency.(b) the pressure and volume at the beginning of the isothermal expansion, in kPa and m3,respectively.

Given data as per question Mass of air, m=2 kg Maximum temperature , TH=750 K Minimum temperature,…

Two kilograms of air within a piston-cylinder assembly execute a Carnot naximum and minimum temperatures of 750 K and 300 K, respectively. the air during the isothermal expansion is 60 kJ. At the end of the isotherm volume is 0.4 m³. Assuming the ideal gas model for the air, determine

Two kilograms of air within a piston-cylinder assembly execute a Carnot naximum and minimum temperatures of 750 K and 300 K, respectively. the air during the isothermal expansion is 60 kJ. At the end of the isotherm volume is 0.4 m³. Assuming the ideal gas model for the air, determine

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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Concept explainers

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.

Question

Two kilograms of air within a piston-cylinder assembly execute a Carnot power cycle with
maximum and minimum temperatures of 750 K and 300 K, respectively. The heat transfer to
the air during the isothermal expansion is 60 kJ. At the end of the isothermal expansion the
volume is 0.4 m³. Assuming the ideal gas model for the air, determine
(a) the thermal efficiency.
(b) the pressure and volume at the beginning of the isothermal expansion, in kPa and m3,
respectively.

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