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Diffusion can be explained by the kinetic-molecular theory.
how well existing scientific data are explained by the new theory.
Charles Darwin and Alfred Russel Wallace proposed the theory called Natural Selection. This theory explained evolution.
the scientist were jealous of him
Cohesion force theory
Diffusion can be explained by the kinetic-molecular theory.
Diffusion can be explained by the kinetic-molecular theory.
The behavior of electrons around a nucleus is explained by quantum mechanics. It is also described in complete detail by the Schrodinger Equation (which, however, is ridiculously difficult to solve).
Newton explained his theory
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
Greed
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
Photo electric emission cannot be explained using wave theroy of light. We need quantum theory.
All bacterial infections.
intermolecular forces
resistance
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.