pressure cooking

o C under a low pressure. As one goes higher the atmospheric pressure decreases. At about 300 m above sea level water boils at 90 o C. Certain pulses cannot be properly cooked in the open in very high regions as the boiling point of water in these places is too low. ..

Question: What is the principle used in a pressure cooker? Answer: The pressure in the enclosed volume above the liquid reaches much greater values than atmospheric pressure, thus the temperature of boiling water within the cooker is greater than the normal ..

Petroleum gas a by-product from two sources: natural gas processing and crude oil refining is a mixture of butane, propane and ethane. The main constituent of liquefied petroleum gas is, however, propane, propylene, butane, butylene in various mixtures. These hydrocarbons burn readily, producing a..

Identification of Alternative Sources - Fossil fuels are the major source of energy on Earth. With the development of technology, the worlds consumption of the concentrated sources of energy like coal, petroleum and natural gas and uranium has increased. Very slow physical and chemical processes sp..

Coal and Petroleum - Fossil fuels, like, coal, lignite, petroleum and natural gas are non renewable natural resources. Both have an organic origin and are called hydrocarbon fuels. Coal was formed in nature as a solid from the remains of the trees buried deep inside the earth, some 500 million year..