What is mm Hg?

Millimeter of mercury. From Wikipedia, the free encyclopedia. A millimeter of mercury is a manometric unit of pressure, formerly defined as the extra pressure generated by a column of mercury one millimetre high and now defined as precisely133.322387415 pascals. It is denoted by the symbol mmHg or mm Hg.
A.

How many CMHG is in 1 atm?

conversion result for two pressure or stress units:
From unit SymbolEquals ResultTo unit Symbol
1 atmosphere atm= 76.00centimeters of mercury cmHg
• What is meaning of cm Hg?

cmHg – Centimetres of Mercury at 0 deg C Pressure Unit. Centimeters of Mercury is a small pressure unit which represents the pressure pushing down due to gravity of any volume of liquid mercury which is 1cm high.
• What is considered to be high atmospheric pressure?

The Earth's atmosphere exerts a pressure on the surface. Pressure is measured in hectoPascals (hPa), also called millibars. Standard pressure at sea level is defined as 1013hPa, but we can see large areas of either high or low pressure. As air warms, it ascends leading to low pressure at the surface.
• What do high pressure systems bring?

A high pressure system is a whirling mass of cool, dry air that generally brings fair weather and light winds. When viewed from above, winds spiral out of a high-pressure center in a clockwise rotation in the Northern Hemisphere. These bring sunny skies.
B.

What is the standard pressure?

Standard temperature and pressure, abbreviated STP, refers to nominal conditions in the atmosphere at sea level. Standard temperature is defined as zero degrees Celsius (0 0C), which translates to 32 degrees Fahrenheit (32 0F) or 273.15 degrees kelvin (273.15 0K).
• What is the standard pressure in ATM?

“The standard atmosphere (symbol: atm) is a unit of pressure defined as 101325 Pa (1.01325 bar), equivalent to 760 mmHg (torr), 29.92 inHg and 14.696 psi.”
• What is the standard pressure?

Standard temperature and pressure, abbreviated STP, refers to nominal conditions in the atmosphere at sea level. Standard temperature is defined as zero degrees Celsius (0 0C), which translates to 32 degrees Fahrenheit (32 0F) or 273.15 degrees kelvin (273.15 0K).
• What are the conditions for STP?

For chemistry, IUPAC established standard temperature and pressure (informally abbreviated as STP) as a temperature of 273.15 K (0 °C, 32 °F) and an absolute pressure of 101.325 kPa (14.7 psi, 1.00 atm, 1.01325 bar).

Updated: 2nd October 2019