## What is Torricelli on vacuum?

Torricelli surmised correctly that the mercury rose in the tube because of the weight of the atmosphere pressing down on the mercury in the dish, and that the space above the mercury column was a vacuum. It was the first time that a vacuum had been created in the laboratory, and understood as such.

### Why did Evangelista Torricelli use mercury?

In the 17th century, Evangelista Torricelli conducted experiments with mercury that allowed him to measure the presence of air.

What does Evangelista Torricelli’s mercury barometer measure?

Evangelista Torricelli invented the mercurial barometer Barometer – Pronunciation: [b u rom´ u t u r] – a barometer is an instrument for measuring atmospheric pressure. Two common types are the aneroid barometer and the mercurial barometer (invented first).

What is Torricelli’s explanation?

Torricelli’s theorem, also called Torricelli’s law, Torricelli’s principle, or Torricelli’s equation, statement that the speed, v, of a liquid flowing under the force of gravity out of an opening in a tank is proportional jointly to the square root of the vertical distance, h, between the liquid surface and the centre …

## How do you pronounce Torricelli?

1. Phonetic spelling of Torricelli. Tore-i-cell-e. Tor-ri-celli. tor-ri-cel-li.
2. Meanings for Torricelli.
3. Synonyms for Torricelli. Evangelista Torricelli. physicist.
4. Translations of Torricelli. Arabic : توريسيلي Chinese : 托里切利

### Who invented pressure of air?

Evangelista Torricelli
1643: Evangelista Torricelli conducts Berti’s experiment with mercury instead of water. This leads to the invention of the barometer, which measures atmospheric pressure (a measure of the pressure exerted by the atmosphere on a surface).

What is Torricelli’s vacuum class 10?

Answer: A Torricelli vacuum is created when a glass tube is filled with mercury and then upended in a vessel containing a level of mercury. The mercury in the tube falls to a level allowed by atmospheric pressure. The vacuum at the top of the mercury column in the glass tube consists of mercury vapor.

What is the meaning of Torricelli?

: a law in hydrodynamics: the speed of efflux of a liquid from an orifice is equal to that of a body falling freely through a distance equal to the total head of the liquid at the orifice.