The main reason the Carnot cycle is not practical is thatAisothermal heat transfer needs an infinitely slow process (zero ΔT), and real walls are never perfectly insulating or frictionless, so the four ideal processes cannot all be achievedBits efficiency is lower than that of the Otto cycleCit cannot use air as the working fluidDit requires heat addition at constant volume শেয়ার ভুল রিপোর্টTH-1544