Air-water vapour mixture at 30 °C DBT and 40% RH is heated to 65 °C DBT and 30 °C WBT and is used as drying medium under the constant rate period drying of spinach leaves. Specific heat capacities of dry air and pure water vapour are 1.005 and 1.88 kJ kg^-1 °C^-1, respectively. Using the properties given in Table below, the value of absolute humidity in kg water vapour per kg dry air (round off to 3 decimal places) for the dryer exit air at DBT of 45 °C is_______.