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Gas Laws Review

Test Description: Reviews the gas laws and pressure.

Instructions: Answer all questions to get your test result.

1) Pressure is the force per unit

ASurface Area BLength CDepth DVolume

2) The SI unit of force is the

APound BPascal CTorr DNewton

3) If force is held constant as surface area decreases, pressure

Aremains constant Bincreases or decreases, depending on the volume change Cdecreases Dincreases

4) What instrument measures atmospheric pressure?

AVacuum Pump BManometer CTorrometer DBarometer

5) A pressure of 745 mm Hg equals

A1 torr B745 pascal C1 pascal D745 torr

6) Who developed the concept that the total pressure of a mixture of gases is the sum of their partial pressures?

AKelvin BBoyle CDalton DCharles

7) A mixture of four gases exerts a total pressure of 860 mm Hg. Gases A and B each exert 220 mm Hg. Gas C exerts 110 mm Hg. What pressure is exerted by gas D?

A220 mm Hg B165 mm Hg C310 mm Hg D860 mm Hg

8) The volume of a gas is 400.0 mL when the pressure is 1.00 atm. At the same temperature, what is the pressure at which the volume of the gas is 2.0 L?

A800 atm B5.0 atm C0.20 atm D0.5 atm

9) The volume of a gas is 5.0 L when the temperature is 5.0 degrees Celsius. If the temperature is increased to 10.0 degrees Celsius without changing the pressure, what is the new V?

A10.0 L B5.1 L C4.8 L D2.5 L

10) Why does the air pressure inside the tires of a car increase when the car is driven?

AThe air particles inside the tire increase their speed because their temperature rises. BThe air particles collide with the tire after the car is in motion. CSome of the air has leaked out. DThe atmosphere compresses the tire.

*select an answer for all questions

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