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Which property is better explained by the band theory than by the sea of electrons model?
The band theory better explains the electrical conductivity of materials, particularly in semiconductors and insulators. Unlike the sea of electrons model, which treats electrons as delocalized particles in a fixed lattice, band theory accounts for the formation of energy bands and band gaps that dictate how electrons move through a material. This distinction allows for a more accurate understanding of how impurities and temperature variations can affect conductivity, making it essential for explaining the behavior of semiconductors in electronics.
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Which process can be explained by the kinetic-molecular theory?
The process of gas molecules in a container moving in straight lines, colliding with each other and the walls of the container can be explained by the kinetic-molecular theory. This theory describes how the behavior of gas molecules is influenced by their motion and energy.
What is the merit of a new scientific theory is judged by scientist community based on?
how well existing scientific data are explained by the new theory.
What is Alfred Wallace's theory and what evidence did he use to develop it?
Charles Darwin and Alfred Russel Wallace proposed the theory called Natural Selection. This theory explained evolution.
Bohr improved upon Dalton's atomic theory?
Yes, Bohr improved upon Dalton's atomic theory by introducing the concept of quantized energy levels for electrons in an atom. He proposed that electrons orbit the nucleus in specific energy levels or shells, which can only hold a specific number of electrons. This model provided a better explanation for the stability and spectral lines of atoms.
How is the states of matter explained in the atomic theory?
Pressure(p)=6, diameter(d)=100
Which process can be explained by the kinetic theory?
Diffusion can be explained by the kinetic-molecular theory.
How does wave theory explain the photoelectric effect?
Wave theory cannot fully explain the photoelectric effect, as it predicted that the intensity of light, not its frequency, would determine the kinetic energy of ejected electrons. The photoelectric effect is better explained by the particle nature of light, where photons carry discrete amounts of energy that are transferred to electrons upon impact, leading to their ejection from a material.
Why did newton prove Galileo's theory?
Newton explained his theory
Why does the free electron theory fail to predict the semiconducting properties of materials?
Drawbacks of Classical free electron theory:1. It is macroscopic theory2. This theory cannot explain the electron conductivity ofsemiconductors and insulators.3. Ferromagnetism cannot be explained by this theory.4. This theory cannot explain the Photoelectric effect, Comptoneffect and the Black Body radiation.5. The calculated value of specific heat of metals is not matchingwith the experimental value.6. At low temperature, Lorentz number is not a constant. But by12classical theory it is a constant.7. Dual nature cannot be explained.8. Atomic fine spectra cannot be explained.9. Classical theory states that all the free electrons will absorbenergy, but quantum theory states that only few electrons willabsorb energy
What is the fundamental nature of light: are its properties better explained by the wave theory or the particle theory, in the context of waves vs particles?
The fundamental nature of light is better explained by both the wave theory and the particle theory. Light exhibits properties of both waves and particles, known as wave-particle duality. The wave theory explains phenomena like interference and diffraction, while the particle theory explains phenomena like the photoelectric effect. Both theories are needed to fully understand the behavior of light.
What is the best explained theory of crime?
Greed
Which process can be explained by the kinetic-molecular theory?
The process of gas molecules in a container moving in straight lines, colliding with each other and the walls of the container can be explained by the kinetic-molecular theory. This theory describes how the behavior of gas molecules is influenced by their motion and energy.
What makes a theory good?
A theory can be considered good when it is: 1. Testable 2. Parsimonious (The simpler the better) 3. Explains the relation between at least two variables 4. Has an explaining and an explained factor
What diseases can be explained with the germ theory?
All bacterial infections.
What is the theory of evolution that can be explained in part by changes in DNA?
resistance
Example of science theory?
A scientific theory is a structure which explains a set of empirical observations. Some well known theories: Newton's theories of motion: explained how objects moved in the universe. Einstein's general theory of relativity: explained how matter behaves in the universe. Darwin's theory of natural selection: explained why there is a huge number of related species and how new species arose.
What phenomenon cannot be explained on the basis of the wave theory of light?
The phenomenon of photoelectric effect cannot be explained on the basis of the wave theory of light. The wave theory predicts that the energy of a light wave is proportional to its intensity, whereas the photoelectric effect depends on the frequency of light.
