chapter_5_handouts

# chapter_5_handouts - Chapter 5 Gases Ex For gases which of...

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•Gases assume the volume and shape of their containers. •Gases are the most compressible state of matter. •Gases will mix evenly and completely when confined to the same container. •Gases have much lower densities than liquids and solids. Physical Characteristics of Gases Pressure = Force ( force = mass x acceleration) Chapter 5 Gases Ex: For gases, which of the following statement is NOT true? A. Variable shape and volume B. Large average distances between particles C. Large attraction between particles D. Constant collisions between particles, leading to constant changes in direction and velocity E. Tend to be least dense, low molecular weight materials 1 pascal (Pa) = 1 N/m 2 1 atm = 760 mmHg = 760 torr 1 atm = 101,325 Pa Area Connections between P, V, T and n What happens to pressure when you increase or decrease the volume of a gas? What happens when increase T for a closed vessel? What happens when increase T for an open vessel (constant P)?

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