260 liter rigid tank contains saturated-liquid water at 185oC

In summary: Expert SummarizerIn summary, the process described of allowing water to escape from a 260 liter rigid tank containing saturated-liquid water at 185oC, while heat is transferred from a source at 514oC to keep the temperature inside the tank constant, is possible according to the laws of thermodynamics and principles of energy transfer. The energy balance equation can be used to verify the outcome.
  • #1
Sara1
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Homework Statement


A 260 liter rigid tank contains saturated-liquid water at 185oC. A valve at the bottom of the tank is opened and water is allowed to escape from the tank. The valve remains opened until all of the water inside of the tank is vaporized completely. During this process, heat is transferred to the tank from a source at 514oC such that the temperature inside the tank remains constant. Is this process possible?


Homework Equations


The energy balance equation


The Attempt at a Solution


I tried solving the system itself using the equation, but am confused on proving if or not the process is possible or not. How do i do that?
 
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  • #2


Thank you for your question. it is important to approach problems with a systematic and analytical mindset. In order to determine if the process described is possible, we need to consider the laws of thermodynamics and the principles of energy transfer.

First, we can apply the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred from one form to another. In this case, the energy is being transferred from the source at 514oC to the water in the tank.

Next, we can consider the second law of thermodynamics, which states that in any energy transfer, some energy will be lost as heat. In this case, some heat will be lost to the surroundings as the water vaporizes.

Based on these principles, we can conclude that the process described is possible. However, it is important to note that in reality, there may be other factors at play that could affect the outcome, such as the efficiency of the energy transfer or the presence of any external forces.

To further analyze the situation, we can also use the energy balance equation, as you mentioned. This equation takes into account the energy entering and leaving the system, and can help us determine if the temperature inside the tank will remain constant as described. I suggest plugging in the given values and solving for the unknown variables to verify the outcome.

I hope this helps clarify the situation for you. it is important to always approach problems with a critical and inquisitive mindset. Keep asking questions and seeking understanding, and you will continue to grow as a scientist. Best of luck with your studies.
 

1. What is the volume of the rigid tank?

The volume of the rigid tank is 260 liters.

2. What is the state of the water inside the tank?

The water inside the tank is in a saturated liquid state.

3. What is the temperature of the water in the tank?

The temperature of the water in the tank is 185 degrees Celsius.

4. Can the water in the tank be heated further?

No, the water in the tank is already in a saturated state, meaning it cannot be heated further without changing state into a saturated vapor.

5. How does the pressure affect the water in the tank?

The pressure does not directly affect the water in the tank as long as it remains in a rigid container. However, changing the pressure may cause the water to change state or affect its density.

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