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What is torr a measure of?

What is torr a measure of?

One “torr,” a unit named in honor of Torricelli, is equivalent to one millimeter of mercury, yielding the figure of 760 torr as normal atmospheric pressure at sea level. Torr as units of measure are typically used for vacuums in the 1 to 760 Torr range.

What is torr also known as?

The torr (symbol: Torr) is a unit of pressure based on an absolute scale, defined as exactly 1760 of a standard atmosphere (101325 Pa). Historically, one torr was intended to be the same as one “millimeter of mercury”, but subsequent redefinitions of the two units made them slightly different (by less than 0.000015%).

What did the Italian inventor Torricelli invent?

Barometer
Evangelista Torricelli/Inventions
Although he made important contributions to the field of mathematics, Evangelista Torricelli is best known for his invention of the barometer. Born in Faenza, Italy, on Oct. 15, 1608, he began his education there and later (around 1630) studied in Rome.

Who is the unit torr named after?

Evangelista Torricelli
The torr (symbol: Torr) is a non-SI unit of pressure defined as 1/760 of an atmosphere. It was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the principle of the barometer in 1644.

How is torr related to SI unit of quantity?

Textbook solution The torr is a non-SI unit of pressure with the ratio of 760 to 1 standard atmosphere, chosen to be roughly equal to the fluid pressure exerted by a millimeter of mercury, i.e., a pressure of 1 Torr is approximately equal to one millimeter of mercury. ( Pascal is the SI unit of pressure.)

What is torr how it is related to the SI unit of quantity?

The torr (symbol: Torr) is a non-SI unit of pressure with the ratio of 760 to 1 standard atmosphere, chosen to be roughly equal to the fluid pressure exerted by a millimeter of mercury, i.e., a pressure of 1 Torr is approximately equal to one millimeter of mercury.

Who is the unit torr named after and what did he do to earn that honor?

Where is Evangelista Torricelli from?

Rome, Italy
Evangelista Torricelli/Place of birth

What does torr stand for in chemistry?

Torr is obsolete unit of pressure. It is equal to the pressure exerted by a column of mercury one milimetre high, measured at 0 °C. The unit was named after the Italian physicist Evangelista Torricelli (1852-1908). 1 torr = 1 mmHg (0 °C) 760 torr = 1 atm.

How did the unit of measurement Torr get its name?

It is often combined with the metric prefix milli to name one millitorr (mTorr) or 0.001 Torr. The unit was named after Evangelista Torricelli, an Italian physicist and mathematician who discovered the principle of the barometer in 1644.

What was the invention of Evangelista Torricelli known for?

Evangelista Torricelli was an Italian physicist and mathematician, best known for his invention of the barometer.

Who is Torricelli and what did he do?

The “torr”, a unit of pressure, is named after him. Torricelli published a number of manuscripts on geometry, physics and astronomy, most of which are preserved in Florence, Italy. Not only was he a great theoretical scientist, he was also extremely skilled at making lenses and mechanical instruments such as microscopes and telescopes.

What’s the meaning of the word Torr in Wikipedia?

Torr. From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. Traditional unit of pressure. For other uses, see Torr (disambiguation). torr. Unit of. Pressure. Symbol.

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