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- pressure = height of column × density of the liquid × gravitational field strength (p = h~rho~g) This is when: pressure (p) is measured in pascals (Pa) height of column (h) is measured in metres (m) density (ρ) is measured in kilograms per metre cubed (kg/m 3) gravitational field strength (g) is measured in newtons per kilogram (N/kg)
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Jul 22, 2022 · We know that pressure and volume are inversely related; as one decreases, the other increases. Pressure is decreasing (from 2.44 atm to 1.93 atm), so volume should be increasing to compensate, and it is (from 4.01 L to 5.07 L). So the answer makes sense based on Boyle’s Law.
Early scientists explored the relationships among the pressure of a gas (P) and its temperature (T), volume (V), and amount (n) by holding two of the four variables constant (amount and temperature, for example), varying a third (such as pressure), and measuring the effect of the change on the fourth (in this case, volume).
Use our revision notes to learn the definition, applications and equation for pressure. Compare the pressure exerted by different objects. Learn more.
To calculate the pressure at the surface of a fluid use the equation: \ (pressure = \frac {force~normal~to~a~surface} {area~of~that~surface}\) \ (p = \frac {F} {A}\) This is when: pressure...
Oct 27, 2022 · Learning Objectives. Define the property of pressure. Define and convert among the units of pressure measurements. Describe the operation of common tools for measuring gas pressure. Calculate pressure from manometer data. The earth’s atmosphere exerts a pressure, as does any other gas.
Summary. Four quantities must be known for a complete physical description of a sample of a gas: temperature, volume, amount, and pressure. Pressure is force per unit area of surface; the SI unit for pressure is the pascal (Pa), defined as 1 newton per square meter (N/m 2).
