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Internal energy is an extensive state function. That means it depends on how much of a substance you have but if you fix the composition, pressure, temperature, volume, and (in the case of a system at a phase equlibrium point, like water at the freezing point) the phase of a system, the specific internal energy will be constant. If you take a closed system and change the volume of it, you will be doing work (or allowing the system to do work) and the internal energy can change - so - yes - internal energy of a system depends upon volume. Also, if you fix the composition, temperature, pressure, and phase of a homogeneous mass but change the volume, you will increase the amount of mass you included in the system, thus changing the total internal energy (because it is, after all, an extensive function).
What else can I help you with?
Why internal energy does not depend upon pressure and volume?
Internal energy is a state function, meaning it depends only on the current state of the system (like temperature and number of particles) and not on how the system arrived at that state (like changes in pressure or volume). This is because internal energy is a property of the system's internal molecular configuration and energy, rather than its external parameters like pressure and volume.
When heat is added to a closed system it goes into?
The added heat in a closed system increases the internal energy of the system, which can result in an increase in temperature, pressure, or volume depending on the type of system and the material properties.
What is a property that depends on the extent or size of a system?
An extensive property is a property that depends on the size or extent of a system. Examples include mass, volume, and energy.
What is enthaply?
Enthalpy is a thermodynamic property of a system that represents the total heat content of the system. It is denoted by the symbol H and is equal to the internal energy of the system plus the product of pressure and volume. Enthalpy is commonly used to analyze energy changes in chemical reactions.
Does a compressor change kinetic energy into pressure energy?
Yes, a compressor converts mechanical energy into pressure energy by increasing the kinetic energy of a gas or fluid, which in turn raises the pressure within the system. This is achieved by reducing the volume of the gas or fluid, causing it to be compressed and increasing its pressure.
Why internal energy does not depend upon pressure and volume?
Internal energy is a state function, meaning it depends only on the current state of the system (like temperature and number of particles) and not on how the system arrived at that state (like changes in pressure or volume). This is because internal energy is a property of the system's internal molecular configuration and energy, rather than its external parameters like pressure and volume.
How can the enthalpy of air be calculated?
The enthalpy of air can be calculated using the equation: enthalpy internal energy pressure volume. This equation takes into account the internal energy of the air and the pressure and volume of the system.
What is the relationship between the internal energy of a closed system and its thermodynamic properties?
The internal energy of a closed system is a measure of the total energy contained within the system, including the kinetic and potential energies of its particles. This internal energy affects the thermodynamic properties of the system, such as temperature, pressure, and volume. Changes in the internal energy can lead to changes in these properties, as described by the first law of thermodynamics.
What is the impact of a change in entropy at constant volume on a system's thermodynamic properties?
A change in entropy at constant volume affects a system's thermodynamic properties by influencing its internal energy and temperature. When entropy increases, the system becomes more disordered and its internal energy and temperature also increase. Conversely, a decrease in entropy leads to a decrease in internal energy and temperature. Overall, changes in entropy at constant volume play a crucial role in determining the behavior and characteristics of a system in thermodynamics.
What is the difference between delta H and delta E in thermodynamics?
In thermodynamics, delta H represents the change in enthalpy, which is the heat energy exchanged during a process at constant pressure. Delta E, on the other hand, represents the change in internal energy, which is the total energy of a system. Enthalpy includes both internal energy and the energy required to change the system's volume, while internal energy only considers the system's total energy.
What is the relationship between the change in internal energy (du) and the change in temperature (dt) in the context of thermodynamics?
In thermodynamics, the change in internal energy (du) of a system is directly related to the change in temperature (dt) of the system. This relationship is described by the equation du nCvdt, where n is the number of moles of the substance and Cv is the molar specific heat at constant volume. This equation shows that the change in internal energy is proportional to the change in temperature when the volume of the system is held constant.
If 400 J of heat are added to a gas in an isochoric process comma what is the change in its internal energy?
In an isochoric (constant volume) process, there is no change in volume, so the work done is zero. Therefore, all the heat added goes into increasing the internal energy of the system. The change in internal energy of the gas would be equal to the heat added, which in this case is 400 J.
To find the change in the internal energy of a system which equation would you use?
To find the change in internal energy for a system, you can use the equation: ΔU = Q - W where ΔU is the change in internal energy, Q is the heat added to the system, and W is the work done by the system.
What is the relationship between the change in entropy at constant volume and the thermodynamic property of a system?
The change in entropy at constant volume is related to the thermodynamic property of a system because entropy is a measure of the disorder or randomness of a system. When there is a change in entropy at constant volume, it indicates a change in the system's internal energy and the distribution of energy within the system. This change in entropy can provide insights into the system's behavior and its thermodynamic properties.
What is the relationship between temperature, pressure, and volume in determining the total internal energy of a gas?
The relationship between temperature, pressure, and volume in determining the total internal energy of a gas is described by the ideal gas law. This law states that the total internal energy of a gas is directly proportional to its temperature and is also affected by its pressure and volume. As temperature increases, the internal energy of the gas also increases. Additionally, changes in pressure and volume can affect the internal energy of the gas through their impact on the gas's temperature.
When heat is added to a closed system it goes into?
The added heat in a closed system increases the internal energy of the system, which can result in an increase in temperature, pressure, or volume depending on the type of system and the material properties.
By what means can the internal energy of a system increase?
there are a number of ways: you could put that system into direct thermal contact with another system of a higher temperature, which would result in a conduction of heat energy from the higher energy system to the lower one. Or you could fire radiation at the system which the system absorbs and thus its internal energy is raised. I think you might increase the energy if you decrease the volume under pressure, because the temperature will increase and you will have done work on the system, hence increasing it internal energy. Like wise, if you spray a deodorant can, it comes out cold, because the compressed gas has done work on the atmosphere, and used up internal energy, hence it feels cold.
