. "114068028"@en-us . . "a hypothetical gas with molecules of negligible size that exert no intermolecular forces"@en-us . . . . "114916512"^^ . . "110704009"@en-us . . "ideal gas"@en-us . . . . . "ideal gas"^^ . "14916512-n"^^ . "0"^^ . "0"^^ . "perfect gas"@en-us .