In which process net work done is zero ?

An ideal gas undergoes four processes: isochoric, isobaric, isothermal and adiabatic. In which process is (ii) the work done zero?

Work done becomes zero

{:("List -I","List -II"),((a)"it is possible to change the temperature of a gas without supplying heat ",(e)"isothermal process"),((b)"change in internal energy is zero",(f) "adiabatic process"),((c)"work done is zero ",(g)"isochoric process"),((d)"work done by the gas is maximum for a given increment in volume",(h)"isobaric process"):}

Explain the isobaric process and derive the work done in this process.