Thermodynamics Problem gas expansion

In summary, the conversation discusses a problem given in university involving a propane tank that initially contains 5 L of liquid propane at 20 degrees C. It asks for the temperature of the propane when the pressure drops to 1bar and the total heat transfer needed to vaporize all the propane. The specific heat capacities and a saturated properties table of propane are provided. The conversation also mentions the need to calculate the mass of gas in the tank, with mL being the answer where L is the latent heat of vaporization.
  • #1
20751236
1
0
We have been given this problem through university and I am stumped!

Consider a propane tank that initially contains 5 L of liquid propane at the environment temperature of 20 degrees C.

If a hole develops in the connecting tube of the propane tank and the propane starts to leak out, determine the temperature of the propane when the pressure in the tank drops to 1bar under equilibrium conditions.

Also determine the total amount of heat transfer from the environment to the tank to vaporize the entire propane in the tank under equlibrium conditions to 20 degrees C.

(Specific heat capacity of liquid propane 2.4 kJ/kg.K vapour propane 1.7 kJ/kg.K).

I also have access to the saturated properties table of propane.

Any help would be much appreciated! :) Thanks
 
Engineering news on Phys.org
  • #2
If only we could calculate the mass of the gas in the tank. mL is the answer. Where L is the latent heat of vaporization.

If anyone finds a mistake in this please put forward.
 

Related to Thermodynamics Problem gas expansion

1. What is the definition of "Thermodynamics Problem gas expansion"?

Thermodynamics Problem gas expansion refers to the study of the behavior of gases as they expand and contract under different conditions, such as changes in temperature, pressure, and volume.

2. How is gas expansion related to thermodynamics?

Gas expansion is a fundamental concept in thermodynamics, as it is closely linked to the laws of thermodynamics which govern the transfer of energy and the behavior of matter. The study of gas expansion allows us to understand how gases behave in different environments and how they can be used to perform work.

3. What are the key principles of thermodynamics that apply to gas expansion?

The key principles of thermodynamics that apply to gas expansion include the first and second laws of thermodynamics, which govern the conservation of energy and the direction of energy transfer, and the ideal gas law, which describes the relationship between pressure, volume, temperature, and moles of gas.

4. What are some real-world applications of gas expansion in thermodynamics?

Gas expansion is a crucial concept in many real-world applications, such as in the design of engines, refrigeration systems, and power plants. It is also important in understanding weather patterns and atmospheric dynamics, as well as in the production and storage of industrial gases.

5. How do we solve problems involving gas expansion in thermodynamics?

Solving problems involving gas expansion in thermodynamics usually involves applying the laws of thermodynamics and the ideal gas law to a specific scenario, along with any relevant equations and coefficients. It also requires a good understanding of the properties and behavior of gases under different conditions.

Similar threads

I Obtaining this form for molar energy under virial expansion (Callen)
    • Thermodynamics
Replies
23
Views
1K
Why is temperature constant after gas has expanded?
    • Introductory Physics Homework Help
Replies
33
Views
1K
Adiabatic Expansion of Pressurized Air in a Piston-Cylinder Setup
    • Introductory Physics Homework Help
Replies
8
Views
787
Predicting Remaining Pressure in Compressed Gas Cylinder
    • Mechanical Engineering
Replies
3
Views
1K
I Calculating Cooling Effect in Gas Cylinder Expansion
    • Thermodynamics
Replies
3
Views
1K
Thermodynamics: Gas Expansion with Piston Friction
    • Thermodynamics
2
Replies
65
Views
75K
I Irreversible adiabatic processes & entropy change (clarification needed)
    • Thermodynamics
Replies
22
Views
2K
As much steam as possible from engine exhaust gas + warm water?
    • General Engineering
Replies
25
Views
2K
How Does Fuel Composition Affect Combustion Efficiency and Steam Generation?
    • Engineering and Comp Sci Homework Help
Replies
9
Views
7K
Understanding specific volume(introductory thermodynamics)
    • Mechanical Engineering
Replies
3
Views
4K

Hot Threads

Recent Insights

Back
Top