We usually set the fan speed to keep the temperature rise of the air passing through the system between roughly 40F-65F depending on the age and efficiency of your system. So, return air temperature may be 70F which means that the supply air measured in the furnace would be 110F to 135F.
exists and is an alternate of . Carbon dioxide is denser than air. The density of carbon dioxide is 1,977 g/L at 0 0C and standard pressure. The density of air (the so called International Standard Atmosphere) is 1,225 g/L. Carbon dioxide is denser than air. <br /> The density of carbon dioxide is 1,977 g/L at 0 0C and standard pressure. <br /> The density of air (the so called International Standard Atmosphere) is 1,225 g/L.
â¢ For moist air: â Question for thought: At the same temperature and pressure, is moist air more dense or less dense than dry air?âAnswer: Less dense! â¢ At the same temperature and pressure, the same volume of gas contains the same number of molecules.Since H 2 O molecules weigh less than N 2 or O 2 molecules, the same volume of moist air actually weighs less than the same volume of dry air. For moist air: â Question for thought: At the same temperature and pressure, is moist air more dense or less dense than dry air?âAnswer: Less dense! â¢ At the same temperature and pressure, the same volume of gas contains the same number of molecules.