What is the work done by the gas during the adiabatic expansion?
zero
Adiabatic free expansion of a gas Because there is no external pressure for the gas to expand against, the work done by or on the system is zero. Since this process does not involve any heat transfer or work, the first law of thermodynamics then implies that the net internal energy change of the system is zero.
Does an adiabatic expansion do work?
An adiabatic expansion has less work done and no heat flow, thereby a lower internal energy comparing to an isothermal expansion which has both heat flow and work done. Temperature decreases during adiabatic expansion.
What is work done in adiabatic process?
An adiabatic process is one in which no heat is gained or lost by the system. The first law of thermodynamics with Q=0 shows that all the change in internal energy is in the form of work done.
What is the condition for adiabatic expansion?
Essential conditions for the adiabatic process to take place are: i) System is perfectly insulated from surrounding. ii) The process must be carried out rapidly so that the system hs sufficient time to exchange heat with the surroundings.
What is the work done during the expansion of an ideal gas both in reversible and irreversible?
0
During free expansion of an ideal gas, the work done is 0 be it a reversible or irreversible process. Where ∆U represents the change in internal energy, q is the heat given by the system and w is the work done on the system.
When an ideal gas expands in vacuum no work is done because?
When an ideal gas expands into the vacuum it does zero work. Since the gas does not have to expend any internal energy for the expansion, the term free expansion. Since there is no change in internal energy, the temperature of the ideal gas does not change on free expansion.
Why is adiabatic work lower than isothermal work during expansion?
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 .
What is adiabatic process and find work done in adiabatic process?
Difference Between Isothermal and Adiabatic Process
| Isothermal process | Adiabatic process |
|---|---|
| Work done is due to the change in the net heat content in the system | Work done is due to the change in its internal energy |
| The temperature cannot be varied | The temperature can be varied |
What happens to the change in internal energy of a gas during adiabatic expansion?
The temperature of a gas does not change when it undergoes an adiabatic expansion. Reason . During an adiabatic expansion of a real gas, the internal energy of the gas remains constant.
What is the work done during the expansion of an ideal gas?
What is the work done for an ideal gas 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.