0
irstly from Thermodynamics point of view, we need to call heat as Heat transfer. Both Heat and work transfer are energies in transit. They come into picture only when a process is taking place. Also the quantity of heat transfer depends on the type of process or path followed. So Heat Transfer is a path function but not a property(which is a point function). 📷 In case of properties, the difference in properties (here P2-P1 or V2- V1)between state 1 and state 2 always remains same irrespective of the path followed. So properties are called Exact Differentials or Point functions. But in case of Heat transfer and Work transfer, the quantity of heat and work transfer between state 1 and state 2 depends on the path followed. Therefore heat and work transfer are not exact differentials,they are Inexact differentials or path functions.
Ramlal Poudel
Wiki User
∙ 10y agoBecause they are not property, they are depended on how the process is done, or path dependent.
Add your answer:
Earn +20 pts
Which one of the following conditions would always result in an increase in the internal energy of a system?
the system gains heat and does work on the surroundings
What is the transfer of heat by direct contact?
When a cold object and a hot object are in direct contact (touching) heat will be transferred through thermal conduction. Normally, heat transfer processes are categorized as thermal conduction, radiative transfer or convection. Heat transfer through thermal conduction is the direct transfer of kinetic energy from one molecule to the nearby molecules. Because temperature is directly proportional to kinetic energy, interactions between neighboring particles exchange energy and that exchange energy gradually works it way from the higher temperature regions to the lower temperature regions. The process of the temperature becoming the same is called thermal equilibration. Convective heat transfer occurs in fluids. If a gas, liquid, or other fluid, changes in fluid density change the buoyancy and will cause fluid to flow (a process called convection) and the heat contained in the warmer fluid is transferred to a new location by the physical movement of the fluid. Radiative transfer occurs when a hot object radiates electromagnetic energy. While the sun is an obvious source of electromagnetic energy, it is also generated in smaller amounts by any object. The hotter objects radiate more electromagnetic energy and the cooler objects absorb it. This radiative transfer is important but not as noticeable usually as the other two. It does occur between objects whether they are in direct contact or not, but is usually so small as not to be important of the objects are touching.
What is the transfer of energy called?
Answer It depends on the type of energy and the type of object. If it is heat energy, then it can be transfered by conduction, convection, radiation, or conversion.AnswerThere are two ways of 'manipulating' energy: work and heat.Work describes the conversion of energy from one form into another. For example, and electric motor does work when it converts electrical energy into kinetic energy.Heat describes the transfer of energy from a warmer body to a cooler body.
Why is a refrigerator called a thermal energy mover On what scientific principles does it work?
It removes thermal energy on what ever you place on the refrigerator. The first principle is transfer of heat, the second is solidification or vapourization.
What did William Harvey's observation and experiments show?
How the Heart and Circulatory system work.
What is the difference between isolated system and non flow adiabatic system?
An isolated system is a system that doesn't not interact with its surroundings. No interactions at all. No work, no heat transfer. An adiabatic system is one that does not permit heat transfer between the system and its surroundings. It can do work on the surroundings.
How heat transfer from cold body to hot body?
by doing external work on the system eg;refrigerator
Which thermodynamic process takes place when work is done on the system but no energy is transferred to or from the system as heat?
If work is done on a system as compression work and no heat interaction is allowedbetween the system and the surroundings, then you have an adiabatic compression.
How does heat transfer work?
a guy
What is it called when a substance releases energy to its surroundings?
There are two ways that a substance ( called the System ) may release energy to the Surroundings :( 1 ) Heat may be released by heat transfer from the System to the Surroundings. Heat transfer from the System to the Surroundings requires the System temperature to exceed the temperature of the Surroundings and the presence of one or more heat transfer modes ( conduction, convection, and/or radiation.( 2 ) Work done by the System of on the Surroundings corresponding to a force moving through a distance, such as when the substance expands. Substance confined to a cylinder with a piston may expand, doing work on the Surroundings.
What are the properties of heat and work?
Heat is a form of energy that results in a change in temperature or state of the system. Work refers to an activity that is being done on or by the system with the involvement of energy. Energy is the capacity to do work and is analogous to domestic currency. Both Work and heat (energy) are measured in Joules.
What is the relationship between heat added to a system and the internal energy and external work done by the system-?
When heat is added to or is absorbed by a system, its internal energy increases. The amount of external work a system can do essentially refers to the amount of energy it can transfer to something else. So when internal energy increases, so does the external work done by the system.
How do the three types of heat transfer work together to to heat the troposphere?
three types of heat transfer work together to heat the troposphere by heating the solid with (conduction) air ( convection) and radiation from the sun.
How do the three types of heat transfer work together to heat the the troposphere?
three types of heat transfer work together to heat the troposphere by heating the solid with (conduction) air ( convection) and radiation from the sun.
How do the three types of heat transfer work together to heat the atmosphere?
Three types of heat transfer all work together to heat the troposphere by heating the solid with air and radiation which comes from the sun
Which process of heat transfer do geysers work?
Convection and conduction.
How do three types of heat transfer work together to heat the trosphere?
convection,radiation,and conduction?
