Advertisements
Advertisements
Question
Differentiate between the reversible and irreversible processes.
Advertisements
Solution
| Sr. No. | Reversible process | Irreversible process |
| i. | A reversible process is a change that can be retraced in a reverse (opposite) direction. | An irreversible process is a change that cannot be retraced in a reverse (opposite) direction. |
| ii. | The path of a reversible process is the same in the forward and the reverse direction. | The path of an irreversible process is not the same in the forward and the reverse direction. |
| iii. | Reversible changes are very slow and there is no loss of any energy in the process. | There is a permanent loss of energy from the system due to friction or other dissipative forces in an irreversible process. |
| iv. | The system comes back to its initial state after it is taken along the reverse path. | The change of state depends upon the path taken to change the state during an irreversible process. |
| v. | Reversible processes are ideal processes. | Irreversible processes are real processes. |
| vi. |
p-V diagram:
|
p-V diagram:
|
RELATED QUESTIONS
Give an example of some familiar process in which heat is added to an object, without changing its temperature.
Answer in brief.
Why should a Carnot cycle have two isothermal two adiabatic processes?
For work done to be reversible, the process should be ______
Draw a p-V diagram of the reversible process.
Draw a p-V diagram showing positive work with varying pressure.
Draw a p-V diagram showing positive work at constant pressure.
An ideal gas of volume 2 L is adiabatically compressed to (1/10)th of its initial volume. Its initial pressure is 1.01 x 105 Pa, calculate the final pressure. (Given ЁЭЫ╛ = 1.4)
Explain work done during a thermodynamic process.
Explain thermodynamics of the adiabatic process.
When a cycle tyre suddenly bursts, the air inside the tyre expands. This process is ____________.
When food is cooked in a vessel by keeping the lid closed, after some time the steam pushes the lid outward. By considering the steam as a thermodynamic system, then in the cooking process
Apply first law for an isothermal process.
Apply first law for an isobaric process.
Give an equation state for an isochoric process.
Draw the PV diagram for the isobaric process.
What is a cyclic process?
What is meant by a reversible and irreversible processes?
Explain in detail an adiabatic process.
Derive the work done in an adiabatic process.
What are the limitations of the first law of thermodynamics?
In an adiabatic expansion of the air, the volume is increased by 4%, what is the percentage change in pressure? (For air γ = 1.4)
In a petrol engine, (internal combustion engine) air at atmospheric pressure and temperature of 20°C is compressed in the cylinder by the piston to `1/8` of its original volume. Calculate the temperature of the compressed air. (For air γ = 1.4)
An ideal gas is expanded isothermally from volume V1 to volume V2 and then compressed adiabatically to original volume V1. If the initial pressure is P1, the final pressure is P3 and net work done is W, then ____________.
Assertion: Equal volumes of monatomic and polyatomic gases are adiabatically compressed separately to equal compression ratio `("P"_2/"P"_1)`. Then monatomic gas will have greater final volume.
Reason: Among ideal gases, molecules of a monatomic gas have the smallest number of degrees of freedom.
In the figure shown here, the work done in the process ACBA is ______.
In a certain thermodynamical process, the pressure of a gas depends on its volume as kV3. The work done when the temperature changes from 100°C to 300°C will be ______ nR, where n denotes number of moles of a gas.
When an inflated ballon is suddenly burst, why is the emerging air slightly cooled?
In a cyclic process, if ΔU = internal energy, W = work done, Q = Heat supplied then ______.
