Quiz: 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. increase
b. remain the same
c. decrease
2. What must remain constant if Charles' law is to be applied to a given sample of a gas?
a. pressure
b. volume
c. temperature
3. What temperature scale must be used when applying Charles' law?
a. Celsius
b. Fahrenheit
c. Kelvin
4. To convert a Celsius 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. proportionally to the square
c. inversely
6. The temperature at which the volume of a gas theoretically becomes zero is
a. subliming point
b. freezing point
c. absolute zero
7. 35°C is equal to
a. 35 K
b. 308 K
c. –238 K
8. 420 mL of a gas at 25.0°C is compressed to 210 mL. What is the temperature of the gas after compression?
a. 12.5°C
b. 149 K
c. 273 K
9. A sample of helium gas is heated from 20.0°C to 40.0°C. This heating process causes the gas to expand to a volume of 585 mL. What was the original volume of the helium gas?
a. 625 mL
b. 292 mL
c. 548 mL

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