VIPSolutionssub subject and topic name3.52 Find the missing property of P, 7, v, u, h, and x and indicate the states in a P—v and a 7—v diagram for a. Water at 5000 kPa, u = 1000 kJ/kg b. R-134a at —20°C, u = 220 kJ/kg c. Nitrogen at 250 K, 200 kPa
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sub subject and topic name
3.52 Find the missing property of P, 7, v, u, h, and x and
indicate the states in a P—v and a 7—v diagram for
a. Water at 5000 kPa, u = 1000 kJ/kg
b. R-134a at —20°C, u = 220 kJ/kg
c. Nitrogen at 250 K, 200 kPa
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Asked by: Sachin hanjagi
Created at: 2025-10-21 01:37:33
Asked by: Sachin hanjagi
Created at: 2025-10-21 01:37:33
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**Subject:** Thermodynamics
**Topic:** Properties of Gases and Diagrams (P–v and T–v diagrams)
Question:
solve correct answer
This is AI generated Response.
Asked by: Sachin hanjagi
Created at: 2025-10-21 01:41:05
Asked by: Sachin hanjagi
Created at: 2025-10-21 01:41:05
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# Thermodynamics: Properties of Gases and Diagrams
## Problem Statement
Find the missing property (P, v, u, h, and x) for the following substances and indicate their states in P–v and T–v diagrams.
### a. Water at 5000 kPa, u = 1000 kJ/kg
1. **Given:**
- Pressure (P) = 5000 kPa
- Internal Energy (u) = 1000 kJ/kg
2. **Find:**
- Specific Volume (v)
- Enthalpy (h)
- Quality (x)
3. **Solution Steps:**
- Use steam tables for water at 5000 kPa.
- Identify the state (subcooled, saturated, or superheated).
- Calculate specific volume (v) and enthalpy (h) using the identified state.
### b. R-134a at -20°C, u = 220 kJ/kg
1. **Given:**
- Temperature (T) = -20°C
- Internal Energy (u) = 220 kJ/kg
2. **Find:**
- Pressure (P)
- Specific Volume (v)
- Enthalpy (h)
- Quality (x)
3. **Solution Steps:**
- Consult R-134a refrigerant tables at -20°C.
- Determine the corresponding pressure and specific volume.
- Calculate enthalpy (h) and quality (x) if applicable.
### c. Nitrogen at 250 K, 200 kPa
1. **Given:**
- Temperature (T) = 250 K
- Pressure (P) = 200 kPa
2. **Find:**
- Specific Volume (v)
- Internal Energy (u)
- Enthalpy (h)
3. **Solution Steps:**
- Refer to nitrogen property tables or equations of state.
- Calculate specific volume (v), internal energy (u), and enthalpy (h).
## Conclusion
For each substance, utilize appropriate thermodynamic tables or equations to find the missing properties and indicate their states on P–v and T–v diagrams.
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