Purchase Solution

Energy states and rotational states for molecules at room temperature

Not what you're looking for?

Ask Custom Question

3. Probable energy states for molecules at room temperature

(a) Suppose we have an system that has the following allowed electronic energy states: 0.2 eV, 2.0 eV, 3.0 eV, 10eV. What is the probability of the system to be at each of these energy states at 350K, 1000K?

(b) Suppose we have a system that has the following allowed rotational energy states: 1.30E-03 eV, 2.1E-03 eV, 3.10E-03 eV. What is the probability of populating these rotational states at 300K and 5000K?

(c) From the above analysis what rotational and electronic states are you likely to find a typical molecule in at room temperature?

Purchase this Solution
Solution Summary

This solution provides detailed calculations for finding the probability that a system will be found in a certain energy states and rational states.

Purchase this Solution
Free BrainMass Quizzes
Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.

Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

The Moon

Test your knowledge of moon phases and movement.

View More Free Quizzes
Related BrainMass Solutions

  • Fractional excitation of a two-state ensemble

    97868 Fractional excitation of a two-state ensemble Temperature plays a role in determining the relevance of electronic, vibrational, and rotational spectral lines in room-temperature biomedical optics.

  • CN in molecular clouds

    To account for this data, astronomers postulated that the molecules were in thermal equilibrium with some reservoir at a well defined temperature. What is that T?

  • Degrees of freedom of diatomic molecule and Fermi energy

    The internal energy for a diatomic molecule near or below room temperature is 5/2 N k T = 5/2 n R T. This is because the molecule has besides kinetic energy also internal energy in the form of rotational energy.

  • Working with partition function and entropy

    The rotation of the temperature for energy and entropy is found. The solution explains each step and provides all mathematical steps.

  • Definition of heat and temperature

    This thus means that energy present at the macroscopic level such as the center of mass of the balls can vanish into the internal energy in the form of potential and kinetic energy of the molecules.

  • Kinetic Molecular Theory: Benzoic Acid

    The kinetic molecular theory states that the average kinetic energy of gas molecules is dependent on temperature. As temperature increases, the average kinetic energy increases. It also states that the attractions between molecules is negligible.

  • Understanding Vapour Pressure

    A beaker of water in a fume hood at room temperature or a glass in the house can last for many days without appreciable evaporative loss.

  • Boltzmann's Law's of Statistical Mechanics

    Where Ni is the number of molecules at equilibrium temperature T, in a state i, which has energy Ei and degeneracy gi, N is the total number of molecules in the system and k is the Boltzmann constant.

  • Reaction at Temperature

    In the present reaction while going from left to right, entropy decreases from 3 molecules to 2 molecules. This reduction in entropy is unfavourable and should make the reaction non spontaneous at room temperature. But this is not so.

View More Related Solutions