Are isobaric processes reversible?

The reversible expansion of an ideal gas can be used as an example of an isobaric process. Of particular interest is the way heat is converted to work when expansion is carried out at different working gas/surrounding gas pressures.

Can an isochoric process be reversible?

This allows both the gas and the sequence of reservoirs to experience a reversible change. To reverse the process, you just reverse the sequence. That would consist of exchanging heat from the reservoirs to the gas, in sequence. The only difference here would be for the very first and very last reservoirs.

Why are processes reversible?

Reversible processes traverse a succession of equilibrium states. A reversible process represents a limit to the performance of actual processes. For a given change of state the surroundings extract maximum possible work from the system if the process is carried out reversibly.

Why isothermal process is reversible?

Isothermal expansion continues as long as the applied force decreases and appropriate heat is added to keep pV = 2. The expansion is said to be internally 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.

What is reversible adiabatic?

Reversible adiabatic process is also called an Isentropic Process. It is an idealized thermodynamic process that is adiabatic and in which the work transfers of the system are frictionless; there is no transfer of heat or of matter and the process is reversible.

In which process pressure is constant reversible or irreversible?

The constant pressure, constant volume and constant pvn processes are regarded as irreversible process.

Why are reversible processes more efficient?

Reversible processes produce the maximum amount of work If a process does work on the surroundings, you get more work out of the process if it is done slowly. This is because less heat is lost to the surroundings. So a reversible process (infinitely slow) does the maximum work.

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.

Why is expansion reversible?

This is a reversible process because a very small increase in the external pressure would cause the gas to be compressed. To expand the gas irreversibly, we reduce the pressure very quickly. As the gas expands it does work on the surroundings (by moving the piston against the external pressure).

What is constant Isochoric process?

An isochoric process is one in which the volume is held constant, meaning that the work done by the system will be zero. The only change will be that a gas gains internal energy.

What remains constant in isobaric process?

An isobaric process occurs at constant pressure. Since the pressure is constant, the force exerted is constant and the work done is given as PΔV. An isobaric expansion of a gas requires heat transfer to keep the pressure constant.

Are isobaric reactions always reversible?

Reversiblity is a very theoretical concept. Most reactions are irreversible. But, yes isobaric processes are mostly reversible because work done is proportional to volume and not pressure as in isobaric process pressure is constant. But this statement is not always correct too.

What is the effect of isobaric process on pressure?

This basically neutralizes any pressure change due to the transfer of heat. In an isobaric process, when the heat is transferred to the system some work is done. However, there is also a change in the internal energy of the system.

Is isobaric compression positive or negative work?

If the volume compresses (ΔV = final volume − initial volume < 0), then W < 0. That is, during isobaric compression the gas does negative work, or the environment does positive work. Restated, the environment does positive work on the gas.

Is there such a thing as a reversible process?

Actually in reality there is no such thing as reversible process.reversible process is only an assumption that was made to ease the calculation. Even if i am talking about theories there is many example which are isobaric but not reversible. Assume a container filled by gas , and is expanding freely to the atmosphere.