Charles' Law

1.    According to Charles’ Law, as the temperature of a given sample of gas at constant pressure is increased, the volume will

• a. decreases

• b. increases

• c. remains the same

2.    What must remain constant if Charles’ Law is to be applied to a given sample of a gas?

• a.    Volume

• b.    Pressure

• c.    Temperature

3.    What temperature scale must be used when we are dealing with gases?

• a.    Celsius

• b.    Fahrenheit

• c.    Kelvin

 

4.   To convert a Celcius temperature to Kelvin, you would

• a.    subtract 273.15

• b.    add 273.15

• c.    do nothing, as the two scales are equivalent

5.    According to Charles Law, volume and temperature vary

• a.    directly

• b.    inversely

• c.    proportionally to the square

6.    The temperature at which the volume of a gas theoretically become zero is

• a.    absolute zero

• b.    freezing point

• c.    subliming point

7.    35ᴼC is equal to

• a.    -238.15 K

• b.    238.15 K

• c.    308.15 K

8.    420 mL of a gas at 25.0ᴼC is compressed to 210 mL. What is the temperature of the gas after compression?

9.    A sample of a helium is heated from 20.0ᴼC to 40.0ᴼC. This heating process causes the gas to expand to a volume of 585 mL. What was the original volume of the helium gas?

10.    Find the initial volume of a gas at 300 K, if the ultimate volume is 6 L at 200 K.