Chapter 4

# Chapter 4 - Chapter 4 THE GAS LAWS I Properties of Gases A...

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Chapter 4- THE GAS LAWS I. Properties of Gases A. Gases are Easily Compressed. B. Gases expand to Fill Their Containers C. Gases have Low Density D. Gases may be Mixed. E. Gases Exert Pressure Equally in all Directions. II. Gas Measurements  A. Volume: amount of space occupied B. Mass: amount of matter present C. Temperature: intensity of heat energy K= ˚C + 273 D. Pressure: force per unit area At 0˚C or 273 K at sea level, atmospheric pressure =760 mm Hg =760 torr

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=1 atmosphere III. Boyle's Law A. Describes the relationship between has volume and  pressure. B. The volume of a given sample of gas varies indirectly as the pressure if the temperature is held constant. C. Equation P1V1 = P2V2 V1   =  P2 V2    =   P1 V1= initial volume V2= Final volume P1= initial Pressure
P2= Final Pressure Example: A gas sample occupies a volume of 4.50 L at 750 torr.  Find the pressure

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Chapter 4 - Chapter 4 THE GAS LAWS I Properties of Gases A...

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