- Which work done is more adiabatic or isothermal?
- Why real processes are irreversible?
- Does adiabatic mean isothermal?
- Is an isothermal process reversible?
- In which process work done is maximum?
- In which process work done is zero?
- What is CP and CV?
- Is Isochoric process reversible?
- What does it mean if a process is reversible?
- When the work done is maximum and minimum?
- What is meant by isobaric process?
- Why reversible process is not possible?
- Does an adiabatic process need to be isothermal?
- What is an example of isobaric process?
- Is adiabatic process reversible?
- What is a reversible isothermal process?
- Is freezing isothermal or isobaric?
- How do you tell if a process is reversible or irreversible?
Which work done is more adiabatic or isothermal?
The reason is the isothermal expansion process uses the heat transferred from the surroundings to do its work, whereas for the adiabatic expansion Q=0 and the process uses the system’s internal energy to perform its work..
Why real processes are irreversible?
Four of the most common causes of irreversibility are friction, unrestrained expansion of a fluid, heat transfer through a finite temperature difference, and mixing of two different substances. These factors are present in real,irreversible processes and prevent these processes from being reversible.
Does adiabatic mean isothermal?
Adiabatic : There is no heat transfer. Whatever work is done on system will drive change in state properties. Temperature being a state property may change and also pressure, specific volume , internal energy and other state properties as well. Isothermal : There is no change in Temperature.
Is an isothermal process reversible?
The reversible expansion of an ideal gas can be used as an example of work produced by an isothermal process. … The expansion is reversible if the piston motion is sufficiently slow such that at each instant the gas temperature and pressure is uniform and conforms to the ideal gas law.
In which process work done is maximum?
Answer: Work done is maximum in an adiabatic process.
In which process work done is zero?
An isobaric expansion of a gas requires heat transfer to keep the pressure constant. An isochoric process is one in which the volume is held constant, meaning that the work done by the system will be zero.
What is CP and CV?
Cp is “Specific Heat in constant pressure”. … Cv is “Specific heat in constant volume”. This means it is the amount of heat required to increase temperature by 1 dgree celcius, when heat is given at constant volume. So, Cp and Cv is used according to the heat supplied.
Is Isochoric process reversible?
Yup. Supply the heat in a quasi static manner so that at every moment system is in equilibrium. Heating in this manner will take indefinite amount of time but the process would be reversible.
What does it mean if a process is reversible?
A reversible process is defined as a process in which the system and surroundings can be returned to the original conditions from the final state without producing any changes in the thermodynamics properties of the universe, if the process is reversed.
When the work done is maximum and minimum?
If the applied force is in one direction and the displacement of the body is in the opposite direction, then work done is minimum as COS 180 is equal to minus one. This is the minimum possible work done and work done is maximum when force and displacement are in the same direction.
What is meant by isobaric process?
An Isobaric process is a thermodynamic process in which the pressure stays constant: ΔP = 0. The heat transferred to the system does work, but also changes the internal energy of the system. This article uses the physics sign convention for work, where positive work is work done by the system.
Why reversible process is not possible?
Having been reversed, it leaves no change in either the system or the surroundings. Since it would take an infinite amount of time for the reversible process to finish, perfectly reversible processes are impossible.
Does an adiabatic process need to be isothermal?
For an adiabatic process, in which no heat flows into or out of the gas because its container is well insulated, Q = 0. If there is also no work done, i.e. a free expansion, there is no change in internal energy. For an ideal gas, this means that the process is also isothermal.
What is an example of isobaric process?
Isobaric Process Example An example of the isobaric process includes the boiling of water to steam or the freezing of water to ice. In the process, a gas either expands or contracts to maintain constant pressure and hence the net amount of work is done by the system or on the system.
Is adiabatic process reversible?
A process that is reversible and adiabatic is called an adiabatic reversible process. An adiabatic process is a thermodynamic process where there is no heat transfer. … A reversible process is a process wherein quantity of heat transferred is directly proportional to the systems entropy change.
What is a reversible isothermal process?
Hence, a reversible isothermal expansion is an infinitely-slow increase in volume at constant temperature. … All the reversible isothermal PV work wrev done by an ideal gas to expand was possible by reversibly absorbing heat qrev into the ideal gas.
Is freezing isothermal or isobaric?
So melting and evaporating or freezing and condensating are isothermal, because the transfered heat just changes the state of substance and does not increase or decrease the temperature.
How do you tell if a process is reversible or irreversible?
Process: when the state variables change in time. Reversible Process: when every step for the system and its surroundings can be reversed. A reversible process involves a series of equilibrium states. Irreversible Process – when the direction of the arrow of time is important.