Amixture of gases has 8 bar and the volumetric analysis of a gaseous mixture yields the following results: 10% co2 ; 6% o2 ; 80% n2 and 4% co. determine a. the partial pressures of the gases in the mixture. b. the gas constant of the mixture c. if 5 kg of mixture are cooled at constant pressure to 25c find the final volume.

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?