Harriet Tubman. Harriet Tubman (born Araminta Ross; c. 1822 â March 10, 1913) was an American abolitionist, humanitarian, and an armed scout and spy for the United States Army during the American Civil War.
Rating Newest Oldest. Best Answer: Natural gas is piped to your home as a vapour while propane is stored as a liquid in portable containers. You are still burning vapour not liquid with a propane appliance. When you draw off the vapour and burn it, the liquid in the tank boils to create more vapour.
Propane, the most common liquefied petroleum gas (LP-gas), is one of the. nation's most versatile sources of energy and supplies about 4 percent of our. total energy needs. Propane exists as a liquid and a gas. At atmospheric pressure and temperatures. above â44 F, it is a non-toxic, colorless and odorless gas. Just as with natural. gas, an identifying odor is added so it can be readily detected. When contained in. an approved cylinder or tank, propane exists as a liquid and vapor. The vapor is. released from the container as a clean-burning fuel gas. Propane is 270 times. more compact as a liquid than as a gas, making it economical to store and. transport as a liquid. Approximately 90 percent of the United Statesâ propane supply is produced. domestically, while 70 percent of the remaining supply is imported from Canada. and Mexico.