Air containing 20.0mole% water vapor at an initial pressure of 1 atm absolute is cooled in a 1-L sealed vessel from 200°C to 15°C. a)What is the pressure in the vessel at the end of the process? (Hint: The partial pressure of air in the system can be determined from the expression pair = nairRT/V.) b)What is the mole fraction of water in the gas phase at the end of the process? c)How much water (grams) is condensed?

Acylindrical tank is capable of storing 20,000 foot-pounds [ft ibf] of energy for use in your roommate's 2006 subaru wrx. the tank contains nitrous oxide, n20, which you may assume is an ideal gas and has a molecular weight of 44 grams per mole 1g/mol. the tank fits in a space in the trunk that is no wider than 6 inches fin] and no longer than 10 inches [inj, and you may assume the warm clemson weather is keeping the temperature of the tank inside the trunk at a constant 100 degrees fahrenheit [°fl. what is the weight of the nitrous oxide occupying the tank when full, in units of dynes