One of my friends was discussing today about the work done by ideal gases in three different processes. They are isothermal, isobaric and adiabatic. We googled to learn about the differences between work done in isothermal and adiabatic processes. Some links we read told us work in isothermal processes is greater than work in adiabatic processes. Then we started to google to learn the differences between work done in isothermal processes and work in isobaric processes. One source says that, in the case of expansion of gases, work done in isothermal processes is greater than work done in isobaric processes. But, that source didn't give any explanation behind it. And, this source also didn't say what will happen if the gas is compressed. I had read my textbook carefully to get an idea about this topic, but unfortunately, I failed to come to a decision.
Now I am here to learn something from the experts of this site. It would be good if anyone could give me an explanation of my query. It would be helpful also if I got some links that are able to meet my need.