Solving Thermo Dynamics Problem: Aluminum Cylinder Filled with Turpentine

In summary, to solve this problem, we can use the equation for thermal expansion to calculate the amount of turpentine that overflows and the amount that the turpentine's surface recedes without using specific numbers.
  • #1
elabed haidar
135
1

Homework Statement



A hollow aluminum cylinder 20.0 cm deep has an internal
capacity of 2.000 L at 20.0°C. It is completely filled with
turpentine and then slowly warmed to 80.0°C. (a) How
much turpentine overflows? (b) If the cylinder is then
cooled back to 20.0°C, how far below the cylinder’s rim
does the turpentine’s surface recede? we have the coeffiecent of turpentine and aluminium just help me solve this question without necessaryly using the numbers

Homework Equations





The Attempt at a Solution


i need help actually
 
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  • #2
solving this problem.

Hello,

Thank you for your post. To solve this problem, we can use the equation for thermal expansion:

ΔL = αLΔT

Where ΔL is the change in length, α is the coefficient of thermal expansion, L is the original length, and ΔT is the change in temperature.

For part (a), we can use this equation to find the change in length of the cylinder as it is warmed from 20.0°C to 80.0°C. Since the cylinder is completely filled with turpentine, the change in length will correspond to the amount of turpentine that overflows. We can then use the known coefficient of thermal expansion for aluminum and turpentine to calculate the amount of overflow without using specific numbers.

For part (b), we can use the same equation to find the change in length as the cylinder is cooled back to 20.0°C. This will correspond to the amount that the turpentine's surface recedes below the cylinder's rim. Again, we can use the known coefficients of thermal expansion to calculate this without using specific numbers.

I hope this helps. Let me know if you have any further questions.
 

Related to Solving Thermo Dynamics Problem: Aluminum Cylinder Filled with Turpentine

1. How do you calculate the heat energy of an aluminum cylinder filled with turpentine?

To calculate the heat energy of the aluminum cylinder filled with turpentine, you will need to know the specific heat capacity of aluminum and turpentine, the mass of the cylinder and the temperature change. You can then use the formula Q = m x c x ΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity, and ΔT is the change in temperature.

2. Can you determine the change in entropy of the system?

Yes, the change in entropy can be calculated using the formula ΔS = Q/T, where ΔS is the change in entropy, Q is the heat energy, and T is the temperature in Kelvin. However, this calculation assumes that the process is reversible and that the temperature remains constant.

3. How does the volume of the turpentine affect the thermodynamics of the system?

The volume of the turpentine does not directly affect the thermodynamics of the system. However, it can indirectly impact the system by changing the pressure and temperature of the system. This can be accounted for by using the ideal gas law, PV = nRT, where P is pressure, V is volume, n is the number of moles, R is the gas constant, and T is the temperature.

4. What assumptions are made when solving thermo dynamics problems?

Some common assumptions made when solving thermo dynamics problems include assuming the process is reversible, that there is no heat loss or gain to the surroundings, and that the substances involved behave ideally. Additionally, some simplifications may be made, such as assuming constant pressure or temperature.

5. How can you determine the work done by the system in this scenario?

The work done by the system can be calculated using the formula W = PΔV, where W is the work, P is the pressure, and ΔV is the change in volume. In this scenario, the work would be the force required to compress or expand the turpentine within the cylinder.

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