Muscle cramps may be brought on by many conditions or activities, such as: 1  Exercising, injury, or overuse of muscles. 2  Pregnancy. Cramps may occur because of decreased amounts of minerals, such as calcium and magnesium, especially in the later months of pregnancy.  Exposure to cold temperatures, especially to cold water.
Butane is a colorless gas with a faint petroleum-like odor. For transportation it may be stenched. It is shipped as a liquefied gas under its vapor pressure. Contact with the liquid can cause frostbite.
In this experiment you will measure the Pressure  Volume behavior of a gas that is not ideal. The gas used will be butane. Most of us are familiar with a disposable butane lighter. Under a moderate amount of pressure, the butane (iso-butane actually) is in the liquid state at room temperature.