A change of state is usually accompanied by a change of specific heat. The specific heat of ice is 0.5; while that of water is 1.0. 5. Wattage required to change a liquid to a vapor state at constant temperature.Heat of vaporization (Btu/lb) x Weight of material to be vaporized (lb/hr) 3.412 btu/watt hr.t requires 965 Btu to change one pound of water at 212 F to one pound of steam at 212 F. 6. Wattage to counteract liquid surface losses: Total liquid surface area (sq. ft.) x Loss rate at final temperature (watts/sq. ft.) 2 = Watts 7.
Some people are sensitive to molds. For these people, exposure to molds can cause symptoms such as nasal stuffiness, eye irritation, wheezing, or skin irritation. Some people, such as those with serious allergies to molds, may have more severe reactions.
In general, when the level of a mold species in a building is at least one order of magnitude greater than the outdoor concentration, a person's symptoms are probably related to indoor mold exposure. Indoor mold can be classified into two groups.