9.92 kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L Determine the temperature and total enthalpy in the container. The container is now heated until the pressure is 600 kPa. Determine the temperature and total enthalpy when the heating is completed. Use data from the steam tables. R-134a 300 kPa m kg 14 L The temperature in the container is The total enthalpy in the container is KJ The temperature in the container when the heating is completed is 1°C The total enthalpy in the container when the heating is completed is KJ

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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**Educational Exercise: Thermodynamics involving Refrigerant (R-134a)**

**Problem Statement:**

9.92 kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L. Determine the temperature and total enthalpy in the container. The container is now heated until the pressure is 600 kPa. Determine the temperature and total enthalpy when the heating is completed. Use data from the steam tables.

**Diagram Overview:**

The image displays a schematic of a rigid container filled with Refrigerant R-134a at an initial state of 300 kPa and a mass of 9.92 kg. The volume of the container is specified as 14 L. There is a symbol denoting heat transfer (Q) indicating that the container is heated until the pressure reaches 600 kPa.

**Steps and Calculation Requirements:**

1. **Initial State (at 300 kPa):**
   - Determine the temperature in the container using the specified pressure and volume conditions.
   - Determine the total enthalpy in the container using the given mass and the enthalpy data for R-134a at the specified state.

2. **Heated State (at 600 kPa):**
   - Determine the temperature in the container after heating using the new pressure condition.
   - Calculate the total enthalpy in the container at the new state.

**Data Entry Section:**

- The temperature in the container is: ____ °C
- The total enthalpy in the container is: ____ kJ
- The temperature in the container when the heating is completed is: ____ °C
- The total enthalpy in the container when the heating is completed is: ____ kJ

For detailed calculations, refer to steam tables for Refrigerant R-134a to obtain specific enthalpy values (h), specific volume (v), and other necessary thermodynamic properties under given conditions.
Transcribed Image Text:**Educational Exercise: Thermodynamics involving Refrigerant (R-134a)** **Problem Statement:** 9.92 kg of R-134a at 300 kPa fills a rigid container whose volume is 14 L. Determine the temperature and total enthalpy in the container. The container is now heated until the pressure is 600 kPa. Determine the temperature and total enthalpy when the heating is completed. Use data from the steam tables. **Diagram Overview:** The image displays a schematic of a rigid container filled with Refrigerant R-134a at an initial state of 300 kPa and a mass of 9.92 kg. The volume of the container is specified as 14 L. There is a symbol denoting heat transfer (Q) indicating that the container is heated until the pressure reaches 600 kPa. **Steps and Calculation Requirements:** 1. **Initial State (at 300 kPa):** - Determine the temperature in the container using the specified pressure and volume conditions. - Determine the total enthalpy in the container using the given mass and the enthalpy data for R-134a at the specified state. 2. **Heated State (at 600 kPa):** - Determine the temperature in the container after heating using the new pressure condition. - Calculate the total enthalpy in the container at the new state. **Data Entry Section:** - The temperature in the container is: ____ °C - The total enthalpy in the container is: ____ kJ - The temperature in the container when the heating is completed is: ____ °C - The total enthalpy in the container when the heating is completed is: ____ kJ For detailed calculations, refer to steam tables for Refrigerant R-134a to obtain specific enthalpy values (h), specific volume (v), and other necessary thermodynamic properties under given conditions.
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