Chem Test 3 - 5.1 Early Experiments All gases exert...

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5.1 Early Experiments All gases exert pressure o Pressure is an effect which occurs when a force is applied on a surface (it’s the amount of force per unit area) o P = F / A P = pressure, F = normal force, A = area Instruments for measuring pressure often use columns of mercury because of its high density o Most commonly used units for pressure are based on the height of the mercury column (mm) the gas pressure can support o torr = mm Hg o 1 standard atmosphere = 1 atm = 760 torr = 760 mm Hg o pascal (Pa) = SI unit for pressure Pa = N/m 2 (or kg/m s 2 ) 1 standard atmosphere = 101,325 Pa 5.2 The Gas Laws of Boyle, Charles, and Avogadro Boyle’s Law (constant T and n) o PV = k k = constant at a specific temperature for a given sample of air inverse relationship between pressure and volume o P 1 V 1 = P 2 V 2 o Approximately describes the relationship between pressure and volume for a gas.
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Chem Test 3 - 5.1 Early Experiments All gases exert...

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