A painful sore or sores inside your mouth, on the tongue, soft palate (the back portion of the roof of your mouth), or inside your cheeks; Sores in your mouth that are round, white, or grey in colour, with a red edge or border; In severe mouth ulcer attacks, you may also experience: Fever; Physical sluggishness; Swollen lymph nodes; How are mouth ulcers treated? Pain from a mouth ulcer generally lessens in a few days and the sores usually heal without treatment in about a week or two. If sores are large, painful or persistent, your dentist may recommend an antimicrobial mouth rinse, a corticosteroid ointment, or a prescription or non-prescription solution to reduce the pain and irritation.
Tricky question. Water will obviously boil and turn to vapor (steam) at 100 degrees celcius (212 F). But if you heat water to a point below boiling, you can see it giving off steam. The temperature at which that happens is not fixed;it varies with the ambient temperature and humidity.
Figure 4-2. These drawings show how much heat is required to generate one pound of steamat 100 pounds per square inch pressure. Note the extra heat and higher temperature required tomake water boil at 100 pounds pressure than at atmospheric pressure.Note, too, the lesseramount of heat required to change water to steam at the higher temperature. Figure 4-1.he amount of heat (ex-pressed in Btu) required to change apound of boiling water to a pound ofsteam. This same amount of heat isreleased when a pound of steam iscondensed back into a pound of water.This heat quantity is different for everypressure/temperature combination, asshown in the steam table.