Chemistry: The Kinetic Molecular Theory, homework help

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A temperature increase will result in an increase in gas particle collisions with the walls of the container.

TRUE

FALSE

2 points Save Answer

QUESTION 2

Which of the following gases will diffuse most slowly at 35 degrees Celsius?

O2

N2

Cl2

None of the above; they will all diffuse at the same rate.

3 points Save Answer

QUESTION 3

According to kinetic molecular theory, there are no forces of attraction between the particles of a liquid.

TRUE

FALSE

2 points Save Answer

QUESTION 4

Of the three main states of matter, only gases can be compressed significantly.

TRUE

FALSE

2 points Save Answer

QUESTION 5

Which of the following substances is a fluid?

Air

Ice

Sand

Candles

3 points Save Answer

QUESTION 6

In a car cylinder, a piston moves up and down inside a cylinder, causing the substance inside to expand and contract. Which type of substance could be inside the cylinder?

Gas only

Liquid only

Liquid or solid only

Gas, liquid, or solid

3 points Save Answer

QUESTION 7

The kinetic energy of carbon dioxide molecules in a can of soda is much higher when it is chilled than when it is at room temperature.

TRUE

FALSE

2 points Save Answer

QUESTION 8

Which of the following would have the highest average kinetic energy?

Cl2 gas at 35 °C

F2 gas at 15 °C

O2 gas at 25 °C

N2 gas at 50 °C

3 points Save Answer

QUESTION 9

The average kinetic energy for a volume of gas can be found by multiplying the following: 3/2, temperature (in Kelvin), and the gas constant, 0.0821 L*atm/mol K.

TRUE

FALSE

2 points Save Answer

QUESTION 10

What is the average kinetic energy of 1 mole of a gas at 125 Kelvin? (R = 8.314 J/K-mol)

1.04 x 103 J

3.12 x 103 J

1.56 x 103 J

1.77 x 103 J

  1. Standard atmospheric pressure can be described by many units, including kilopascals, atmospheres, and millimeters of mercury.

2 points

QUESTION 2

  1. Which of the following shows the correct setup in converting 4.1 atmospheres to kilopascals?
    Imported Asset
    Imported Asset
    Imported Asset
    Imported Asset

3 points

QUESTION 3

  1. The pressure of a gas at 10 degrees Celsius is greater than the pressure of the gas at 30 degrees Celsius.

2 points

QUESTION 4

  1. If the volume and moles of a container are held constant, the temperature of a gas is inversely proportional to the pressure.

2 points

QUESTION 5

  1. If the pressure and moles of a gas are held constant, the volume of a gas increases by the same factor as the temperature.

2 points

QUESTION 6

  1. If the moles and temperature of a gas are held constant, the pressure of a gas doubles when:

3 points

QUESTION 7

  1. A balloon containing 0.10 moles of gas has a volume of 2.00 liters. If temperature and pressure remain constant, the new volume will be 3.00 liters when you add 0.15 moles of gas to the balloon.

2 points

QUESTION 8

  1. When using the ideal gas constant value, R = 0.0821, in an ideal gas law calculation, the units of volume may be expressed in milliliters or liters.

2 points

QUESTION 9

  1. A balloon contains a fixed amount of helium. If the initial conditions are 1.12 liters, 3.00 atmospheres, and 19 degrees Celsius, what will the final volume be when the balloon is exposed to 1.00 atmosphere pressure and 22 degrees Celsius?

3 points

QUESTION 10

  1. Initially, a 1.50-liter compressible container of 0.35 moles of a gas exerts a pressure of 740 millimeters of mercury at a temperature of 275 Kelvin. What is the pressure when the container is compressed to 0.50 liters, the moles of gas reduces to 0.20 moles, and the temperature changes to 32 degrees Celsius?
 
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