Gases Question Preview (ID: 19557)


Chapter 10 And 12 Chemistry Addison Wesley. TEACHERS: click here for quick copy question ID numbers.

As a gas is compressed in a cylinder its mass
a) decreases
b) increases
c) stays the same
d) decreases and then expands to its original mass.

As a gas is compressed in a cylinder its pressure
a) decreases
b) increases
c) stays the same
d) decreases and then expands to its original pressure.

As a gas is compressed in a cylinder its volume
a) decreases.
b) increases.
c) stays the same.
d) decreases and then expands to its original volume.

As a gas is compressed in a cylinder the number of molecules
a) increases.
b) decreases.
c) stays the same.
d) decreases and then expands to its original number.

The gas law that states that the pressure of a gas is inversely proportional to its volume is
a) Charles' Law.
b) Boyle's Law.
c) Gay- Lusaac's Law
d) Ideal gas law.

According to the Kinetic Molecule Theory ideal gas particles
a) exert no force on each other.
b) have attractive forces between the gas particles.
c) have repulsive forces between the gas particles.
d) have both attractive and repulsive forces between the particles.

The temperature of a gas is the average
a) potential energy of the gas particles.
b) elasticity of the gas particles.
c) kinetic energy of the gas particles.
d) size of the gas particles.

According to the Kinetic Molecule Theory ideal gas particles themselves are said to
a) make up most of the volume of a gas.
b) to have negligible volume compared to the total volume.
c) must be added to the space between the particles in order to get the true volume.
d) have no mass.

According to the Kinetic Molecule Theory ideal gas particles collisions are
a) perfectly elastic.
b) lose energy as they collide.
c) gain energy as they collide.
d) never collide.

Gases under the conditions of STP are at
a) a temperature of 273K and pressure of 2 atm.
b) a temperature of 273 C and pressure of 1 atm.
c) a temperature of 273 K and a pressure of 1 atm.
d) a temperature of 0 C and pressure of 2 atm.

The gas law that states the volume of a gas is directly proportional to the temperature is
a) Boyle's Law.
b) Charles' Law.
c) Gay Lusaac's Law.
d) Ideal gas law.

The gas law that states the pressure of a gas is directly proportional to the temperature is
a) Boyle's Law.
b) Charles' Law.
c) Gay Lusaac's Law.
d) Ideal gas law.

The temperature that is considered absolute zero is
a) 273 K
b) O C
c) 0 K
d) -273 K

A rigid container holds a gas at a pressure of 55 kPa and a temperature of -100 C. If you are asked to find the temperature if the pressure changes to 100kPa what law would you use to solve?
a) Boyle's Law
b) Charles' Law.
c) Gay Lusaac's Law.
d) Just forget it and go home.

If you are asked to find the volume of a sample of CO2 at 1 atm that was increased to a pressure of 3 atm what law would you use?
a) Boyle's Law
b) Charles' Law.
c) Gay Lusaac's Law.
d) Just forget it and go home.

Avogadro's hypothesis says that
a) equal volumes of liquids have equal numbers of particles.
b) equal volumes of gases have equal numbers of particles.
c) equal volumes of solids have equal numbers of particles.
d) equal masses of liquids have equal numbers of particles.

Exactly 10.0 L of a gas at 25 C is heated to 100 C. What law would you use to find the new volume?
a) Boyle's Law
b) Charles' Law
c) Gay -Lusaac's Law
d) Forget laws you are just going to put your head down on the desk.

760 mm of Hg is equal to
a) 1 atm and 100 kPa
b) 1 kPa and 101.3 atm
c) 101.3 kPa and 1 atm
d) 760 atm and 101.3 kPa

One mole of any gas at STP has a volume of
a) 22.4 L
b) 22.4 g
c) 2.24 L
d) all gases have different volumes under these conditions.

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