ED - Gas Laws

Which diagram best represents a gas in a closed container?

• Diagram (1)

• Diagram (2)

• Diagram (3)

• Diagram (4)

Under which conditions of temperature and pressure would helium behave most like an ideal gas?

• 50 K and 20 kPa

• 50 K and 600 kPa

• 750 K and 20 kPa

• 750 K and 600 kPa

The kinetic molecular theory assumes that the particles of an ideal gas

• are in random, constant, straight-line motion

• are arranged in a regular geometric pattern

• have strong attractive forces between them

• have collisions that result in the system losing energy

The concept of an ideal gas is used to explain

• the mass of a gas sample

• the behavior of a gas sample

• why some gases are monatomic

• why some gases are diatomic

Which grouping of the three phases of bromine is listed in order from left to right for increasing distance between bromine molecules?

• gas, liquid, solid

• liquid, solid, gas

• solid, gas, liquid

• solid, liquid, gas

Under which conditions does a real gas behave most like an ideal gas?

• at low temperatures and high pressures

• at low temperatures and low pressures

• at high temperatures and high pressures

• at high temperatures and low pressures

Which statement correctly describes a sample of gas confined in a sealed container?

• It always has a definite volume, and it takes the shape of the container.

• It takes the shape and the volume of any container in which it is confined.

• It has a crystalline structure.

• It consists of particles arranged in a regular geometric pattern.

Which graph shows the pressure-temperature relationship expected for an ideal gas?

• Graph (1)

• Graph (2)

• Graph (3)

• Graph (4)

Which 5.0-milliliter sample of NH₃ will take the shape of and completely fill a closed 100.0-milliliter container?

• NH_3(s)

• NH_3(l)

• NH_3(g)

• NH_3(aq)

Two basic properties of the gas phase are

• a definite shape and a definite volume

• a definite shape but no definite volume

• no definite shape but a definite volume

• no definite shape and no definite volume