Example 11: Moist air undergoes a process from an initial state of 15°C dry-bulb temperature and 90 percent relative humidity to a final dry-bulb temperature of 40°C. The sensible heat ratio (SHR) of the process is 0.6. Use the psychrometric chart to determine the following quantities at the end of the process: (i) the relative humidity, (ii) the wet-bulb temperature, (iii) the dew-point temperature (iv) the specific volume, (v) the humidity ratio, and (vi) enthalpy.