Asked by Andy Blackwell Uncategorized
What is vibrational motion of malecules?
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Asked in Physics
What is the difference between vibrational motion and wave motion?
Vibrational Motion is the motion of a body during which it moves to and fro about its fixed position. On the other hand, When the patricles of a substance are disturbed due to vibration, they transfer the energy to the neighbouring particles which in turn forms a wave; and when multiples waves move away from the point of disturbence we see a wave motion.
Why rotational transitions are slower than that of vibrational?
Asked in Science, Isaac Newton, Newtons Laws of Motion
What law of motion does this vibrational motion BEST represent?
Which state of matter has vibrational motion only?
What are the three types of motion?
The three types of motion are uniform motion, variable motion, and periodic motion. Uniform motion is when the speed and direction stays the same. But in Periodic motion, the motion is repeated. But in contrast to all of them, Variable motion is when eventually the direction or the velocity (speed) change. Alternatively, in physics there are only three types of motion when describing particles eg electrons, molecules, atoms etc: transitional motion that takes an object from one location to another; vibrational motion that takes the object backwards and forwards over the same relatively small distance; rotational motion where an object is spinning. Most movement consists of a mixture of all three but the particles in a solid would have mainly vibrational motion where as gas particles would have them all.
Asked in Physics
What is an object that is in motion and changes position?
If the object changes position it means it has translational motion. Other types of motion include rotational motion and vibrational motion. This would apply to thermodynamics, when we look at gas molecules. The key point to remember is that the centre of mass of the object has changed displacement coordinates, therefore it has undergone translational motion.
What effect would decreasing the temperature have on Brownian motion?
Asked in Science
What are 3 examples of kinetic energy?
Kinetic Energy is the energy of motion. It takes three forms - Translational KE is the motion of an object from one place to another; Vibrational KE is the motion of a object backwards and forwards; and Rotational KE is the motion of an object as it spins. Translational Kinetic Energy - bouncing a ball, running down the street, an apple falling from a tree; Vibrational Kinetic Energy - the water molecules in food that is being microwaved; Rotational Kinetic Energy - an ice skater as she spins, the electrons in atoms, a spinning top
Asked in Energy
How does a microwave oven change electomagnetic energy into heat energy?
Microwave ovens emit microwaves at specific wavelengths. These wavelengths have specific energies that match up with the vibrational energy levels of water. When the microwave hits a molecule of water it excites that molecule of water into a higher vibrational energy state which causes the substance to heat up.(since heat energy is just the vibrational and kinetic motion of a substance)
Asked in Chemistry
What is molecular motion?
Molecular Motion Molecules and everything in them can move in many ways, and energy is associated with all of those different kinds of motion. There is translational movement. Molecules can move from one place to another.There is also rotational movement. That is, they can turn around and around.The third way shown here is vibrational movement.In addition, electrons can move from place to place and orbital to orbital. These types of motion and the energy associated with them influence the physical properties of chemicals. The color of chemicals is often associated with changes in electron energy levels. The phase of chemicals is associated with translational and rotational motion of molecules. In the gas phase molecules are free to move from one place to another and also have considerable translational motion. Rotational motion can involve the entire molecule rotating or the internal parts of the molecule rotating with respect to one another. These types of rotation are found in molecules in both the gas phase and the liquid phase. Vibrational motion is found in molecules in all three of the phases. It is the vibrational motion and the energy needed to change it that we will focus on now.
Asked in Chemistry
Calculate the first two vibrational energy levels a diatomic molecule?
The vibrational energy of a diatomic molecule can be approximated by extension of the quantum harmonic oscillator. The vibrational energy, Ev, is then Ev = (v + 1/2)hv0 where v is an integer representing vibrational quantum numbers such that v = 0,1,2,3,..., where v=0 for a diatomic molecule at the ground vibrational state; h is Planck's constant; and v0 is the fundamental vibrational frequency. For this problem then, you would need the fundamental vibrational frequency of the particular diatomic atom, and then simply calculate Ev for v=1, and v=2.
Asked in Physics, Energy, Kinematics
What is the relationship between molecular motion and energy of soild?
As temperature of a solid is increased, molecular motion increases.Since, temperature of a solid is directly proportional to average vibrational kinetic energy of molecules of a solid, therefore, energy of a solid increases with an increase in temperature. So, it demonstrates that molecular motion is directly proportional to energy i.e. the higher the energy of solid, the higher is the molecular motion.