Question : 1.              Which of the following not a property of gases? A)Gases : 1335478

1.              Which of the following is not a property of gases?

A)Gases are compressible.

B)Gases expand to fill their containers.

C)The density of a gas is similar to that of a liquid.

D)Gas particles move about rapidly.

E)If one property, such as pressure or volume, or a gas changes, one or more other properties must change as well.

 

2.              Which of the following is not a property of gases?

A)Gases consist of particles that are relatively far apart.

B)Gases can be compressed in a container.

C)Gas particles collide with one another.

D)When gas particles collide, attractive forces keep them attached to one another.

E)When gases are stored under pressure, their densities increase.

 

3.              Which physical characteristic does not apply to a gas?

A)It can be compressed.

B)Its molecules are separated by large distances.

C)It occupies the total volume of its container.

D)It has a high density.

E)It can be formed by the evaporation of its liquid state.

 

4.              Which of the following statements is incorrect?

A)Warm air is less dense than cold air.

B)Warm air rises above cold air.

C)When gases are heated, they expand.

D)The properties of gases are very similar to the properties of liquids.

E)Many properties of gases are the same, regardless of the chemical makeup of the gases.

 

5.              The “Before” image in the figure shows the initial condition of a gas at a certain temperature in a container with a movable piston.  Which of the images represents

the condition of the gas when the temperature of the gas is increased, and the external pressure is held constant?

A)  image I    B)  image II    C)  image III    D)  image IV    E)  None of the images

 

6.              Which of the following statements regarding gas pressure is correct?

A)Gas pressure is commonly measured in units of pounds per square foot.

B)The pressure of air on the outside of a metal can with a low internal pressure is sufficient to crush the can.

C)If the volume of a container filled with a gas increases at constant temperature, the pressure will also increase.

D)If the temperature of a gas sample increases while the gas is held at a constant volume, the pressure will decrease.

E)When the volume of a container of a gas increases, the gas particles will stay together in the bottom of the container.

 

7.              The figure shows a “Before” image of gas atoms at a certain temperature.  If the volume of the container increases, and the temperature remains constant, which of the images represents the final condition of the gas?

A)  image I    B)  image II    C)  image III    D)  image IV    E)  None of the images

 

8.              Convert 689 torr to atm.

A)  0.689 atm    B)  0.760 atm    C)  0.906 atm    D)  1.10 atm    E)  9.98 ? 107 atm

 

9.              Convert 723 torr to atm.

A)  7.32 ? 107 atm    B)  0.723 atm    C)  0.760 atm    D)  0.951 atm    E)  1.05 atm

 

10.              Convert 705 torr to atm.

A)7.01 ? 107 atmD)1.08 atm

B)0.705 atmE)5.36 ? 105 atm

C)0.928 atm

 

 

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