Can Gas and Vapor Be Used Interchangeably
Both forms of propane are usable but cannot be used interchangeably. At critical temperature and pressure two separate phases always co-exist. Chapter 2 Reading Guide Review When a chemical change occurs the products have less mass than the reactants. . The terms gas and vapor can be used interchangeably. So when they say enthalpy of vaporization they mean the phase change from a liquid to the gas state. Correct answer to the question The words gas and vapor can be used interchangeably. In other words a propane system designed to use vapor cant utilize propane in its liquid form and vice-versa. Gas is a state of matter while vapor is not. This is true because a vapor is in fact a substance in its gas phase. Gas is used in a more general setting whereby the word vapor is used to talk about one certain phase of a substance. They are also present in nature and the atmosphere. Vapor and gas are not visible wit...