What is the work done by isothermal expansion of an ideal gas?

When an ideal gas is subjected to isothermal expansion (∆T = 0) in vacuum the work done w = 0 as p ex =0. As determined by Joule experimentally q =0, thus ∆U = 0.

What is QQ V in isothermal expansion?

q v implies that the heat is supplied at a constant volume. When an ideal gas is subjected to isothermal expansion (∆T = 0) in vacuum the work done w = 0 as p ex =0. As determined by Joule experimentally q =0, thus ∆U = 0.

Why is isothermal expansion Negatively -signed?

Therefore, isothermal expansion is the increase in volume under constant-temperature conditions. In this situation, the gas does work, so the work is negatively -signed because the gas exerts energy to increase in volume.

What is free expansion of an ideal gas?

Free expansion of a gas occurs when it is subjected to expansion in a vacuum (p ex =0). During free expansion of an ideal gas, the work done is 0 be it a reversible or irreversible process. It is known that the change in internal energy of a system is given as:

What is the difference between isothermal and free expansion?

Isothermal expansion. An isothermal process is a change in the system such that the temperature remains constant. In other words, in isothermal process ∆T = 0. Free expansion of a gas occurs when it is subjected to expansion in a vacuum (p ex =0). During free expansion of an ideal gas, the work done is 0 be it a reversible or irreversible process.

What is an isothermal process?

An isothermal process is a change in the system such that the temperature remains constant. In other words, in isothermal process ∆T = 0. Free expansion of a gas occurs when it is subjected to expansion in a vacuum (p ex=0). During free expansion of an ideal gas, the work done is 0 be it a reversible or irreversible process.