What is irreversibility and example?
Table of Contents
- 1 What is irreversibility and example?
- 2 What is an example of irreversible process?
- 3 What is irreversibility in childcare?
- 4 What is path and point function explain with suitable example?
- 5 Which of the following process exhibit external mechanical irreversibility?
- 6 What is externally irreversible process?
- 7 What are the two types of irreversibility?
- 8 What is the difference between reversible and irreversible?
What is irreversibility and example?
Some examples of irreversible processes are electric current flow through a conductor with a resistance, magnetization or polarization with hysteresis, inelastic deformation, fluid flow with shock wave, and mixing of fluid with different temperatures, pressures, and/or compositions.
What is an example of irreversible process?
Examples of Irreversible Processes Throttling. Heat transfer. Diffusion. Electricity flow through a resistance.
What is external mechanical irreversibility?
1) External Irreversibility: These are the associated with dissipating effects outside the working fluid. For example: mechanical friction occurring during the process due to some external source.
What is irreversible process give two example of irreversible process?
Examples of an irreversible process : (1) Free expansion of a gas (2) All chemical reaction (3) Diffusion of two dissimilar inert gases (4) A gas seeping throught a porous plug.
What is irreversibility in childcare?
Irreversibility refers to the young child’s difficulty mentally reversing a sequence of events. In the same beaker situation, the child does not realize that, if the sequence of events was reversed and the water from the tall beaker was poured back into its original beaker, then the same amount of water would exist.
What is path and point function explain with suitable example?
A Point function (also known as state function) is a function whose value depends on the final and initial states of the thermodynamic process, irrespective of the path followed by the process. Example of point functions are density, enthalpy, internal energy, entropy etc.
What is reversible and irreversible process with example?
The reversible process is the ideal process which never occurs, while the irreversible process is the natural process that is commonly found in nature. When we tear a page from our notebooks, we cannot change this and ‘un-tear’. This is an irreversible process.
What is reversible and irreversible process examples?
Ans: The changes which can be brought back to their original form are known as reversible changes. For example, melting of ice, expansion, or compression of spring. And irreversible changes are those changes in which the matter cannot be brought back to its original state. For example, burning of fuel, etc.
Which of the following process exhibit external mechanical irreversibility?
The external irreversibility occurs at the system boundary….
| Q. | Which of the following processes exhibit external mechanical irreversibility? |
|---|---|
| B. | adiabatic dissipation of work |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» c. both of the mentioned |
What is externally irreversible process?
A process is externally reversible if no irreversibilities occur outside the boundaries of the system during the process. A process is totally reversible if no irreversibilities occur within the systems or its surroundings during the process. The Carnot cycle is a cycle in which each of its processes is reversible.
What is an example of an irreversible process?
In irreversible processes, mass transfer occurs through a finite chemical potential difference. An example of an irreversible process is a spontaneous chemical reaction, or electrochemical reaction. Δ Stotal > 0 means that no single process is possible for which the total entropy decreases.
Which of the following is an example of mechanical irreversibility?
Thus, free expansion of gas in a system is the example of mechanical irreversibility. It the irreversibility is due to a finite temperature gradient, it is called as thermal irreversibility. Thus, melting of ice cube under the sunlight is the example of mechanical irreversibility.
What are the two types of irreversibility?
There are two types of irreversibility i.) Internal irreversibility ii.) External irreversibility The external irreversibility occurs due to the temperature difference between the source and a working fluid at heat supply and the temperature difference between the sink and the working fluid at heat rejection.
What is the difference between reversible and irreversible?
The first is irreversible (the balloon bursts), and the second is reversible. The concept of reversible processes is something like motion without friction in mechanics. It represents an idealized limiting case that is very useful in discussing the properties of real systems.