As delivered to the consumer at 5 °C, a 1-liter bottle of soda contains carbon dioxide dissolved in water, with the carbon dioxide present at a mole fraction of 2.9 x 10-3 mole fraction (about 7 parts per thousand by mass).  The Henry’s constant for carbon dioxide in water is 9.26 x 102 atmospheres/mole fraction at 5 °C.  The 1-liter soda is opened inside of a closed 10-liter container of air, and, after a period of time, the CO2 in the soda is at equilibrium with the CO2 in the air.  Calculate what portion of the CO2 originally in the soda that has degassed from the soda and is in the air, if the air pressure in the closed container is 1 atm.

Problem 1: Air at 45 C (dry bulb) and 10% relative humidity is to be humidified adiabatically to 60% relative humidity. Use the psychrometric chart to estimate the adiabatic saturation temperature of the air. b. Estimate the final temperature of the air and the rate at which water must be added to humidify 15 kg/min of the entering air. а. Problem 2: Air at 50°C with a dew point of 4°C enters a textile dryer at a rate of 11.3 m3 /min and leaves saturated. The dryer operates adiabatically. Use the psychrometric chart to determine the absolute humidity and humid volume of the entering air, and then use the results to determine the flow rate of dry air (kg/min) through the dryer, the final temperature of the air, and the rate (kg/min) at which water is evaporated in the dryer.

Mount Rainier is the highest mountain in the U.S. state of Washington; it rises 4392 m above sealevel (which is approximately half the height of Mount Everest). If the ambient temperature is 15 °C at sealevel, determine the absolute pressure at the top of Mount Rainier. HINT: The universal gas constant in standard SI units is 8314.3 J/kmol-K Altitude (m) 8964 4392 2025 Sea level Mount Everest Mount Rainier (Washington) Clingman's Dome (Smoky Mountains National Park)

The absolute humidity at atmospheric pressure at 32 ° C is 0.019 kg water / kg dry air. Specify: a) partial pressure of water vapor = ... kPa  b) relative humidity = ...%  c) dew point temperature = ... (° C)