The ideal gas equation
 Question: The simple gas laws describe the relationships involving the pressure, volume, temperature, and amount of an ideal gas.  Boyle’s law states that for a fixed amount of gas at a constant temperature, the gas volume is inversely proportional to the gas pressure. $V\propto \frac{1}{p}$ Avogadro’s law states that the volume of a gas is proportional to the amount of the gas (at constant temperature and pressure. $V\propto n$ Charles law (also called Charles-Gay Lussac’s law) states that the volume of a fixed amount of gas at constant pressure is directly proportional to its temperature (in Kelvin).$V\propto T$ The combination of these three laws is: $V\propto \frac{nT}{P}$ This law can be rearranged to:$PV\propto nT$ The proportional relationship can be written as equation: $PV = nRT$ , where R is a proportional constant termed the gas constant.  The value of R (in SI unit) is:$R = 8.3145Jmol^{-1}K^{-1}$ One well known characteristic of gases in that the expand to fill their containers and assume the shape of their containers.  A practical application of these characteristics is the reaction that forms N2(g)  in an automobile air-bag safety system. This reaction utilizes the rapid decomposition of sodium azide. $2NaN_{3}(s)\overset{\Delta }{\rightarrow}2Na(1) + 3N_{2}(g)$ The essential components of the system are an ignition device and a pellet containing sodium azide.  When activated, the system inflates and air bag in a very short time (milliseconds range).  Note: the liquid sodium is converted to harmless solid sodium due to special additives that are also present initially. Which statement regarding the above chemical reaction is true: Question Created By: Shadi Asakle Creation Date: 2016-10-07 13:11:42 View Question