For a given isothermal expansion, the work done by an ideal gas is maximum when
Q1. For a given isothermal expansion, the work done by an ideal gas is maximum when
Answer: Pressure is low
Explanation: Work done in isothermal expansion is given by W = nRT ln(V_f / V_i). For given V_i and V_f, work is maximum when pressure (and thus density) is low, allowing more expansion. Other options misunderstand the conditions for maximum work.