Centimeter Mercury 0 176 C Converter
Convert Centimeter Mercury 0 176 C to Pascal and more • 57 conversions
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Unit Explanations
Centimeter of MercurycmHg
Source UnitThe centimeter of mercury (cmHg) is a unit of pressure that corresponds to the height of a column of mercury 1 centimeter in height under the influence of standard gravity. It is commonly used in various scientific and engineering applications to measure pressure. The standard atmospheric pressure is defined as 76 cmHg. This unit is derived from the physical principle that the pressure exerted by a fluid in an open system is proportional to the height of the fluid column above it. Hence, 1 cmHg is approximately equal to 98.0665 pascals.
Current Use
The centimeter of mercury is widely used in meteorology, automotive industries, and scientific laboratories to measure atmospheric pressure and partial pressures of gases. It is particularly useful in creating barometers and altimeters, providing a practical and precise way to quantify pressure changes. In many countries, cmHg is a common unit for displaying tire pressure and other applications where pressure measurement is critical.
Fun Fact
The centimeter of mercury is often used as a reference for comparing pressures in different contexts, such as altimeters and weather reports.
PascalPa
Target UnitThe pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
Fun Fact
The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
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= × 1.00000How to Convert
To convert to , multiply the value by 1.00000. This conversion factor represents the ratio between these two units.
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Centimeter of Mercury
pressure • Non-SI
Definition
The centimeter of mercury (cmHg) is a unit of pressure that corresponds to the height of a column of mercury 1 centimeter in height under the influence of standard gravity. It is commonly used in various scientific and engineering applications to measure pressure. The standard atmospheric pressure is defined as 76 cmHg. This unit is derived from the physical principle that the pressure exerted by a fluid in an open system is proportional to the height of the fluid column above it. Hence, 1 cmHg is approximately equal to 98.0665 pascals.
History & Origin
The centimeter of mercury emerged from the need to measure atmospheric pressure, particularly in the context of barometers. Early barometers used mercury due to its high density and low vapor pressure, allowing for a manageable column height to represent atmospheric pressure. The concept of measuring pressure using a liquid column dates back to the 17th century, when Evangelista Torricelli demonstrated that atmospheric pressure can support a column of mercury.
Etymology: The term 'centimeter' is derived from the French 'centimètre', combining 'centi-', meaning one-hundredth, and 'mètre', meaning meter. 'Mercury' comes from the Latin 'hydrargyrum', referring to the element's fluid metallic form.
Current Use
The centimeter of mercury is widely used in meteorology, automotive industries, and scientific laboratories to measure atmospheric pressure and partial pressures of gases. It is particularly useful in creating barometers and altimeters, providing a practical and precise way to quantify pressure changes. In many countries, cmHg is a common unit for displaying tire pressure and other applications where pressure measurement is critical.
💡 Fun Facts
- •The centimeter of mercury is often used as a reference for comparing pressures in different contexts, such as altimeters and weather reports.
- •Mercury is used in barometers because it has a high density, allowing for a shorter column to represent atmospheric pressure.
- •In many regions, pressure is often measured in cmHg for both practical and historical reasons, despite the metric system's global adoption.
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Pascal
pressure • SI Unit
Definition
The pascal (Pa) is the SI derived unit of pressure used to quantify internal pressure, stress, Young's modulus, and ultimate tensile strength. It is defined as one newton per square meter. In other words, it is the pressure exerted by a force of one newton acting uniformly over an area of one square meter. The pascal is a crucial unit in engineering, physics, and meteorology, providing a standard measure for atmospheric pressure, material strength, and force distribution. It allows for consistent and comparable measurements across various scientific and industrial fields.
History & Origin
The pascal was named in honor of Blaise Pascal, a French mathematician, physicist, and inventor known for his contributions to fluid mechanics and the study of pressure. The unit was officially adopted as the SI unit for pressure in 1971, although the concept of pressure itself dates back to early scientific studies of fluids and gases. The pascal provided a standardized way to measure pressure, replacing a variety of non-standard units previously in use across different regions and industries.
Etymology: The term 'pascal' is derived from the name of Blaise Pascal.
Current Use
The pascal is widely used in various fields to measure pressure and stress. In meteorology, it is used to express atmospheric pressure, often in the form of hectopascals (hPa). In engineering, it helps evaluate the strength of materials and structures. The unit is also crucial in fluid mechanics, where it is used to determine fluid pressure in pipes and vessels. The pascal's versatility makes it a fundamental unit in both scientific research and practical applications, especially where precise pressure measurements are critical.
💡 Fun Facts
- •The pascal is named after Blaise Pascal, who made significant contributions to the understanding of fluid pressure.
- •One pascal is a very small pressure; it is equivalent to the pressure of a dollar bill lying flat on a table.
- •The human eardrum can detect pressure changes as small as 20 micropascals.
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Frequently Asked Questions
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