determine the etensity of carbondioxide gas at the sublimation temperature of -78°C and 10 IATM assuming ideal Behaviour of the gas?
Answers
molecules idealtorrscalculateconditionsbehavesvolume law states answer:
Explanation:
of moleculesideal gas molecules of an ideal gas are small and nonpolar; they have no attractive or repulsive forces between them. Avogadro’s law states that, at comparable temperatures and pressures, equal volumes of ideal gases contain equal numbers of molecules. Thus, at the same temperature and pressure, one mole of an ideal gas occupies the same volume as one mole of any other ideal gas. This volume is called the molar volume (Vm)of an ideal gas. For the convenience of reference, we identify standard temperature and pressure (STP)as a temperature of273 kelvin (K) and a pressure of one atmosphere (P = 1 atm, which is also equal to 760 torrs). At STP, the molar volume of an ideal gas is 22.4 L. We can determine the molar volume of carbon dioxide (CO2), which behaves almost ideally, by collecting a CO2sample under non-standard conditions and applying the combined gas law to determine its volume at STP. The combined gas law(Equation 1) indicates the relationship among pressure (P), volume (V), and temperature (T) of a gas sample under two sets of conditions, “1” and “2.”PVTPVT111222=(Eq. 1)We can identify condition “1” as the volume, temperature, and pressure of theCO2sample at laboratory conditions and condition “2” as STP. We can then solve Equation 1 forV2, which becomesVSTP, as shown in Equation 2, and calculate the CO2sample volume at STP.VPVTTPSTP11STP1STP=