2. The substance can change state. For example, if the substance is ice, it can melt into water. Perhaps surprisingly, this change does not cause a raise in temperature. The moment before melting the average kinetic energy of the ice molecules is the same as the average kinetic energy of the water molecules a moment after melting. Although heat is absorbed by this change of state, the absorbed energy is not used to speed up the molecules.
A lung infection is an inflammation in or around the lung tissues that is caused by a virus, fungi, or bacteria. There are a number of things that can trigger this sort of problem, but the four most common tend to be asthma, bronchitis, pneumonia, and tuberculosis.uberculosis. Tuberculosis is one of the most serious lung diseases a person can get. It is a serious pulmonary infection that is caused by mycobacterium tuberculosis. The lungs are usually the main organ affected, but the infection can and often does spread.
Pneumonia is an inflammation of the lung that is most often caused by infection with bacteria, viruses, or other organisms. Occasionally, inhaled chemicals that irritate the lungs can cause pneumonia. Healthy people can usually fight off pneumonia infections. Streptococcus pneumoniae is the most common cause of pneumonia and, in fact, all bacterial upper respiratory infections. 2  It can produce severe pneumonia, with mortality rates of 10%. 3  Nevertheless, pneumococcal pneumonia responds very well to many antibiotics.