Problem 08.034 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C. Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System Determine the exergy destroyed during this process. The exergy destroyed during this process is kJ.

Problem 08.034 - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C. Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System Determine the exergy destroyed during this process. The exergy destroyed during this process is kJ.

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.

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### Required Information

**Problem 08.034** - DEPENDENT MULTI-PART PROBLEM - ASSIGN ALL PARTS - Refrigerant Constant Pressure System

**NOTE:** This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
A piston-cylinder device contains 6 kg of refrigerant-134a at 0.7 MPa and 60°C. The refrigerant is now cooled at constant pressure until it exists as a liquid at 20°C. The surroundings are at 100 kPa and 20°C.

---

### Problem 08.034.b - Exergy destruction of Refrigerant Constant Pressure System

**Task:**
Determine the exergy destroyed during this process.

**The exergy destroyed during this process is** [______] kJ.

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