MCQ PracticeAll gases except __________ shows a cooling effect during throttling process at atmospheric temperature and pressure.Subject: Chemical EngineeringTopic: Chemical Engineering ThermodynamicsAOxygenBNitrogenCAirDHydrogenCorrect Answer: DPractice QuizBack to MCQsRelated MCQsCurrent flows in a circuit whenEighttenths coulomb passes a point in 4 s. The current in amperes isThe unit of electrical charge is the