ਊঘৌ(࢚ഒޛ(ideal mixture) ೊѐद౭ : Lewis/Randallߨ) ࢚ഒޛ ध ध ࢚ഒޛ ࣽࣻޛ ೊѐद౭ ध Lewis/Randall ߨ ഒޛ ೊѐद౭ ध