Question

155 Pense print it hamar Locker Number 191 Name Date IMINARY EXERCISES es, you tate the tenths on the It will PRELIMINARY Experiment 14 Boyle's Law and Charles's Law ce factors that determine the volume of a gas: 1. List the three for b. arles's me in The er due at line on the repeat When dealin pressure (STP). dealing with gases, it is common to refer to volumes at standard temperature and (STP). What are the values of standard temperature and pressure for gases! STP = and crease with ad to and 3. a. State Boyle's law: and I. Or - the b. State Charles's law: gas rith are. che tly 4. If the pressure exerted on a 100-L weather balloon changes from 1.0 atm to 2.0 atm, what would be the volume of the balloon at the higher pressure? Assume the temperature does not change and the balloon has no leaks. Volume = Der Zer ber 5. What would happen to the volume of the 100-L weather balloon if its temperature increases from 25°C to 125°C while the external pressure remains constant? Again, there are no leaks in the balloon. Volume =

Answer 1

Volume of gras do © Pressure 6) Temperature i) Amount of gas. Steundand temperature, a oC = 273.15K Standard Pressure a 1 atm- Boyle's law. At constant temperature, pressure of a given mass of ideal gas is üversely pro partional to its volume o pat at constant temperature). an Bot Para los proportionality constant) on [Pv=c Charles law At custant pressure, volume of an ideal gas is derictly proportional to its absolute temperature Na T at instant pressure) ar va e't ſe': pro parterineity constand) Initial volume of weather balloon, V = 100 L Initial pressure off, Pia latm Final pressure, P2 = 2atm .. Temperative constant 'Final volume , I = ?

Boyle's law : Pad At two sets of conditions Ilgv.) and 18, 2) we have Pra] and P, a bir I divide P, by Pr a [Replacing propertionality by equality] a = P xu 1 an 2 a tota latm x 1000 = 50 L ( Answer) 2 atin Initi al temperature z. 251 = 25+273.15) « = 298.151. Final temperalare =125°C = 1125 +273.15) « = 398.15 k. Initial volume a rool Pressure is constant Charles law Vat At two set of condition ("T) and [2, 72) V, ati and ₂ a Tz I Divide , by we V = Replacing proportionality by quality] - ai Vo = 100 L x 398.15* - bet 133.5L (Aus wer) 298.15 K