Question

Part B

Close the simulation window for oxygen and return to the Cool Molecules Explore page.

Next, click C and then O in the periodic table. Find and view carbon dioxide (CO2) and view all the available vibrational modes of the molecule. In the table below, record the names of these vibrational modes and describe the vibration of the molecule in each mode.

Note: A molecule may have more than one way it can vibrate in each mode (a “state.”) These are shown in the simulation by multiple molecules vibrating side-by-side, so you can compare their motions. Record the number of unique possible states for each mode in the table.

Answer 1

Vibration Mode:

1. A1g Stretch

2. A1u Stretch

3. E1u Bend

Number of States in the Mode:
1. 2

2. 2

3. 2

Description:

1. There are two states. One is contacted inwards and one is expanded outwards.
2. There are two states. One that is stretching to the right and one that is stretching to the left.

3. There are two states. One is bending upwards and one is bending downwards.

What are vibrational modes?

The vibrational modes of a molecule depict the diverse motions of its constituent atoms in relation to each other, arising from the bonds they form. Each mode represents a distinct pattern of atomic movement.

Within a molecule, atoms are linked through chemical bonds like covalent bonds, allowing for stretching, bending, or twisting motions. The variety of vibrational modes is determined by factors such as bond types (single, double, or triple) and the molecular structure's arrangement.

See image below for vibrational modes, number of states in the modes and description.

Answer 2

10 000

Step-by-step explanation: