The moisture holding capacity of air increases with temperature.
The moisture holding capacity of air increases dramatically with increased temperature as indicated in the diagrams below.
Air Moisture Holding Capacity - SI Units
Moisture holding capacity of air - kg water per kg dry air:
Air Moisture Holding Capacity - Imperial Units
Moisture holding capacity of air - lb water per lb dry air:
Moisture holding capacity of air - lb water per 1000 cubic feet dry air:
Note - the moisture holding capacity of air at 100oF (38 oC) is 10 times the moisture holding capacity of air at 30oF (~ 0 oC). This is a very important observation - especially when working with drying processes where air is used to transport moisture away from process and products.
it is in general good energy economy to increase the air temperature in a dryer as much as possible! - the increased moisture transport capacity of air at higher temperature out-weights the increased energy-consumption for heating the dry air to higher temperature!
Online calculator, figures and tables showing density, specific weight and thermal expansion coefficients of air at temperatures ranging -100 to 1600 °C (-140 to 2900 °F) at atmospheric and higher pressure - Imperial and SI Units.
Online calculator, figures and tables with dynamic (absolute) and kinematic viscosity for air at temperatures ranging -100 to 1600°C (-150 to 2900°F) and at pressures ranging 1 to 10 000 bara (14.5 - 145000 psia) - SI and Imperial Units.
Thermodynamic properties of dry air - specific heat, ratio of specific heats, dynamic viscosity, thermal conductivity, Prandtl number, density and kinematic viscosity at temperatures ranging 175 - 1900 K.
Evaporation of water from a water surface - like a swimming pool or an open tank - depends on water temperature, air temperature, air humidity and air velocity above the water surface - online calculator.
The Engineering ToolBox (2003). Air - Moisture Holding Capacity vs. Temperature. [online] Available at: https://www.engineeringtoolbox.com/moisture-holding-capacity-air-d_281.html [Accessed Day Month Year].