Why work done is maximum in isothermal process?

If the external pressure becomes equal to the pressure of the gas, there will be no change in the volume and thus ΔV = 0. The work done is also zero. If Pext is more than the pressure of the gas cannot expand. Therefore work done in an isothermal reversible expansion of an ideal gas is maximum work.

During which process work done is maximum?

adiabatic process
The work done in adiabatic process is maximum. This is because the rate of pressure increase is faster in the adiabatic process as all the energy of the work done on the system increases its internal energy.

What is the maximum work?

Work done in the isothermal reversible expansion of an ideal gas is maximum work. The conditions for maximum work are as follow: All the changes taking place in the system during the process are reversible. The system remains in mechanical equilibrium with the surrounding.

How much work is done in an isothermal process?

For an ideal gas, from the ideal gas law PV = NkT, PV remains constant through an isothermal process. A curve in a P-V diagram generated by the equation PV = const is called an isotherm. For an isothermal, reversible process, the work done by the gas is equal to the area under the relevant pressure -volume isotherm.

Why work done in adiabatic process is less than isothermal?

It takes heat from surrounding and the temperature remains constant throughout the cycle . The second container is insulated (No heat can be added/removed) in a adiabatic expansion. This will do less work than isothermal , because it solely depends on its internal energy to do work .

Which of the following processes is used to do maximum work done on the ideal gas?

Since area under the curve is maximum for adiabatic process, so work done on the gas will be maximum for adiabatic process.

What are the conditions of maximum work?

The conditions for maximum work are as follow:

• All the changes taking place in the system during the process are reversible.
• All the changes taking place in the system during the process should take place in infinitesimally small infinite steps.