Gas Laws Question Preview (ID: 42634)


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For one mole of gas at the same temperature and pressure, which gas will occupy more volume?
a) He
b) Ne
c) Ar
d) They are all the same.

A gas at STP occupies 11.2 L and has a mass of 20. g. The gas must be:
a) N2
b) Ne
c) Ar
d) O2

A fire extinguisher contains 4400 g of CO2. What volume of gas would this be at STP?
a) 100000 L
b) 4400 L
c) 2200 L
d) 8800 L

A hot air ballon rises because
a) The gas pressure goes down
b) The gas density goes down
c) The gas pressure goes up
d) The gas density goes up

In a mixture of carbon dioxide, oxygen, and helium, which gas particles are moving fastest?
a) Carbon dioxide
b) Oxygen
c) Helium
d) All are the same

Gas pressure is caused by:
a) gas particles colliding with each other.
b) gas particles colliding with the container
c) gas particles condensing to liquid
d) gas particles combining with each other releasing energy.

At a pressure of 5.0 atm a gas occupies 40 L. What volume will it occupy if it expands to reach a pressure of 1.0 atm?
a) 0.200 L
b) 200 L
c) 8.0 L
d) 0.025 L

If the volume of aone mole of gas is increased at 200 K, the pressure will
a) decrease
b) increase
c) remain the same
d) change unpredictably

What is 123 Celcius in Kelvin?
a) 396 K
b) 486 K
c) 369 K
d) 458 K

A gas occupies has a volume of 500ml at a pressure of 0.971atm. What volume will the gas occupy at a pressure of 1.50 atm, assuming the temperature remains constant?
a) 342 mL
b) 424 mL
c) 324 mL
d) 442 mL

The gas law that describes the relationship between volume and number of moles is
a) Boyle's Law
b) Charles' Law
c) Avogadro's Law
d) Dalton's Law

The pressure of a mixture of gases is
a) equal to the largest partial pressure of one of the components
b) the sum of the partial pressures divided by the total volume
c) the sum of all the partial pressures
d) depends on the identity of the component gases

A gas at a pressure of 608 mm Hg is held in a container with a volume of 545 mL. The volume of the container is then increased to 1,065 mL without a change in temperature. What is the new pressure of the gas?
a) 311 mm Hg
b) 31.1 mm Hg
c) 511 mm Hg
d) 51.1 mm Hg

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