Kinetic energy of water molecules after shaking

In summary, when water is vigorously shaken, the kinetic energy and motion of the molecules increase. This increase includes the translational energy associated with collision and chaotic random motion, as well as the vibrational and rotational energy of the atoms in the water molecules. Shaking a box of random shaped objects affects both their translational and rotational behavior, and may also affect the vibrational behavior of any springy objects. The slight temperature change after shaking is caused by both the increase in vibration and rotation of the water molecules, as well as their collisions. The specific heat is affected by the number of degrees of freedom in the molecule.
  • #1
jtschild
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When water is vigorously shaken the kinetic energy and, hence, the motion of the molecules increase. Which particular forms of energy do increase : the translational energy (is this the energy associated with the collision and the chaotic random motion of the water molecules ?) or also the vibrational one (vibration of the atoms in the water molecules ?) and the rotational one (rotation of the atoms ?) Is the (slight) temperature change after shaking also caused by the increase in vibration and rotation of the atoms in the water molecules or only by their collision ?
 
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  • #2
Which particular forms of energy do increase : the translational energy (is this the energy associated with the collision and the chaotic random motion of the water molecules ?) or also the vibrational one (vibration of the atoms in the water molecules ?) and the rotational one (rotation of the atoms ?)
Get a box of random shaped objects and shake it - does the shaking affect only the translational behavior of the objects or does it change the rotating behavior too? IF some of the objects are springy, you can carefully look to see if shaking affects the vibrational behavior as well.

Is the (slight) temperature change after shaking also caused by the increase in vibration and rotation of the atoms in the water molecules or only by their collision ?
How is specific heat affected by the number of degrees of freedom in the molecule you mean?
 

1. What is kinetic energy?

Kinetic energy is the energy an object possesses due to its motion. It is directly proportional to the mass of the object and the square of its velocity.

2. How does shaking affect the kinetic energy of water molecules?

Shaking increases the kinetic energy of water molecules by transferring energy to them through collisions with the shaking object. This results in an increase in the velocity of the molecules, thus increasing their kinetic energy.

3. Can the kinetic energy of water molecules be measured after shaking?

Yes, the kinetic energy of water molecules can be measured after shaking by using instruments such as a calorimeter or by calculating the average kinetic energy of a sample of molecules using the Boltzmann distribution.

4. Is the kinetic energy of water molecules after shaking the same as their kinetic energy before shaking?

No, the kinetic energy of water molecules after shaking will be greater than their kinetic energy before shaking due to the additional energy transferred through shaking.

5. How does the kinetic energy of water molecules after shaking affect other physical properties of water?

The increased kinetic energy of water molecules after shaking can affect other physical properties such as temperature, viscosity, and surface tension. For example, the increased kinetic energy can cause an increase in temperature due to the molecules colliding with each other and transferring energy.

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