0
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).
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
How is the pressure and absolute temperature of a gas at constant volume related?
It is change in internal energy. If the volume of the system remains unchanged (isochoric process)then the heat given to the system is entirely utilized to increase the internal energy of that system. It is to be noted that no pressure-voulme work is done in such processes.
What property of sound depends on the energy and intensity of the sound wave?
Its volume or how loud it is.
What is the basic unit of volume in the matric system?
In matric, it is the widget. In the metric system, it could be the meter, the liter, the gram, etc. It depends on whether you are talking about length, weight, volume, etc.
What is the base unit of length mass and volume?
Well, that depends on the system of units used. In the international system (SI):The unit of length is the meter.The unit of mass is the kilogram.The unit of volume is the cubic meter.
Type of thermodynamic properties?
Thermodynamic properties are specific volume, density, pressure, and temperature. Other properties are constant pressure, constant volume specific heats, Gibbs free energy, specific internal energy and enthalpy, and entropy.
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.
Is the work done in isothermal system is zero why?
If a reaction is carried out in constant temperature and constant volume no work is done and heat exchanged with surroundings is equal to the internal energy.
Is the work-done in isothermal system is zero why?
If a reaction is carried out in constant temperature and constant volume no work is done and heat exchanged with surroundings is equal to the internal energy.
What is the volume of water in a five inch pipe?
Depends on the internal diameter, and the flow velocity. Velocity of water = Delta V Internal Radius= R RxRxV= Volume
In a thermodynamic system if you reduce the model by half what variables would also be reduced by half?
All quantitative variables will be reduced including: Internal energy Enthalpy Gibbs energy Volume Mass Moles All intensive properties will remain unchanged including: Specific internal energy Specific enthalpy Specific Gibbs energy Specific volume (and its reciprocal density) Temperature Pressure Heat capacity Elasticity Conductivity etc.
Are molar volume and internal energy intensive properties?
yes, both are intensive properties.
How is the pressure and absolute temperature of a gas at constant volume related?
It is change in internal energy. If the volume of the system remains unchanged (isochoric process)then the heat given to the system is entirely utilized to increase the internal energy of that system. It is to be noted that no pressure-voulme work is done in such processes.
What is the definition of external energy source?
Internal energy is defined as the energy associated with the random, disordered motion of molecules................. External Energy is defined as the energy associated with placing the atoms in the control volume (flow work), at the boundary (boundary work) or across the system boundary (shaft work)
To find the change in the internal energy of a system which equation would you use?
change in eternal energy= n*Cv*delta T n= moles Cv= molar specific heat of gas at constant volume Delta
What are thermodynamics?
Thermodynamic properties are specific volume, density, pressure, and temperature. Other properties are constant pressure, constant volume specific heats, Gibbs free energy, specific internal energy and enthalpy, and entropy.
What is system in thermodynamics?
Thermodynamics is a branch of science that deals with heat, work, and the forms of energy possessed by matter. Thermodynamics is used to analyze thermodynamic processes andthermodynamic cycles.
What is the definition of static enthalpy?
For a gas it is the value of u+pv where u=internal energy p=pressure v=volume
