Solve the following problems given below:
Problem I: Find the average molecular weight and specific gas constant for moist air saturated with water vapor at 0 degrees Celsius and 1000hPa of total pressure. Then determine the virtual temperature, density (rho), mixing ratio w, water vapor density (=absolute humidity) (rho sub v). The saturation vapor pressure of water at 0 degrees Celsius is 6.11 hPa.
Problem II: By what percentage is the density rho greater or less than that for dry air at the same pressure and temperature?
I need help to find the average molecular weight and specific gas constant.