According to the Indian Institute of Science, Bangalor, oil is the general term that applies to all liquid lubricants, while greases are oils that have been mixed with a thickening agent, which turns them into a semi-solid material. Rather than imparting additional lubrication to the mixture, the thickening agent holds the lubricating oil while reducing its viscosity.Know More
Greases and oils both lubricate similar materials, but some applications favor one type over the other. For example, oil is easy to pour, which makes it convenient to use in car engines. Additionally, as the oil gradually undergoes chemical changes while lubricating the engine and collects bits of debris, it must be replaced periodically. This is easier to accomplish with a liquid that can be drained easily, as opposed to a grease, which does not flow well.
By contrast, greases are better suited for applications dealing with sealed containers or components that are hard to access. For example, bearings and gears frequently rely on grease as a lubricant, rather than oil. Unlike oil, greases do not carry heat away from moving parts and are unsuitable for use as a coolant. Additionally, because grease does not transport heat well, it is used in lower-speed applications than oils are. Eventually, most greases turn into a full liquid or a hard deposit.Learn more about Organic Chemistry
The vital force theory was a philosophical, scientific and spiritual belief that organic material contained a "vital force" that enabled them to live. The resulting Vitalism Theory was first proposed in the 16th century and lasted until the mid-19th century.Full Answer >
According to Veria Living, hemp oil has a wide array of benefits. It can be used for dry hair, lip balm, cooking, medicinal purposes, massage oil and skincare. Veria Living suggests that hemp oil can also lower cholesterol levels, strengthen the immune system, reduce blood clots and help manage diabetes.Full Answer >
Olive oil is a mixture of organic compounds, making it impossible to provide a single chemical formula to represent it. The method of extracting the oil from the olives, along with the variety and ripeness of olive used, affect composition.Full Answer >
Fossil fuels include oil, natural gas and coal. Coal is commonly extracted through deep mining, but surface mining is a less expensive alternative. Oil is reached through the drilling of nonporous rock barriers that trap oil reserves. Workers drill porous rocks to reach natural gas reserves.Full Answer >