Planck Guides d'étude, Notes de cours & Résumés

Thermodynamics - ANSWER-Deals with the conversion of energy from one form to another, the direction of the flow of heat, and the availability of energy to do work. therme - ANSWER-Greek word - heat dynamis - ANSWER-Greek word - power Zeroth Law - ANSWER-If two closed system with different temperatures are brought together in thermal contact with a third system, the heat will flow until the bodies reach thermal equilibrium with each other. First Law - ANSWER-Energy can neither be crea...

Ammonium Ion - correct answer NH4(+) Nitrate Ion - correct answer NO3(-) Nitrite Ion - correct answer NO2(-) Hydrogen sulfate ion - correct answer HSO4(-) Sulfate ion - correct answer SO4(2-) Phosphate ion - correct answer PO4(3-) Hydrogen carbonate - co...

Plasma Physics Exam 2024 1.5 Plasma Frequency The plasma frequency, 2 = ne2 , (1.5) ωp ǫ0 m is the most fundamental time-scale in plasma physics. Clearly, there is a different plasma frequency for each species. However, the relatively fast electron frequency is, by far, the most important, and references to “the plasma frequency” in text-books invariably mean the electron plasma frequency. It is easily seen that ωp corresponds to the typical electrostatic oscillation frequency of a...

Geology 310T Exam 1 Questions and Answers Graded A The Earth is being - Altered by humans We call this influence - Anthropogenic Examples of anthropogenic influences Pollution, deforestation, urban heat islands, animal extinction, changing water flow, melting ice, ocean acidification Keeling Curve Graph that plots the ongoing change of CO2 concentration in Earth's atmosphere. It shows the life cycle of trees "breathing" in small squiggly oscillations. Keeling Curve is evidence for - Globa...

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AAMC FL 1 Exam Questions and Answers 2024 If Reaction 2 (Figure 4) is repeated with HCl and the compound shown below, which of the following compounds is NOT a direct product (without rearrangement)? -Answer-Compound A requires a hydride shift to form- therefore not a direct product. NOT an SN2 reaction because of tertiary alcohol- it is SN1 What is the energy of the photons emitted by the LED at a frequency of 610 THz? (Note: h = 6.6 × 10-34 J·s) -Answer-The photon energy is the energy...

Chemistry Cumulative Exam Review Questions With Verified Answers A stable atom that has a large nucleus most likely contains (Atoms and the Atomic Theory) - answerA) more neutrons than protons Which statement best describes the light that will cause emission of electrons from a given metal through the photoelectric effect? (Atoms and the Atomic Theory) - answerB) light with any intensity above a certain frequency The atomic symbol represents potassium-40 (K-40), a radioactive isotope th...

ACS GEN CHEM 1 FINAL Exam 166 Questions with Verified Answers The physical material of the universe. It is anything that has mass and occupies space. - CORRECT ANSWER Matter is made up of relatively few elements. - CORRECT ANSWER Matter The smallest building block of matter. Smallest particle that retains the chemical property of the element (O, He, S). - CORRECT ANSWER Atom Each _______ is made of the same kind of atom - CORRECT ANSWER Element Combination of atoms held together i...

Schrodinger (1925) Continued upon Bohr's findings to determine where electrons are typically found. Heisenberg (1927) Created the heisenberg uncertainty principle because you never can predict where the electron is. (Breaking Bad) De Broglie (1924) Electrons act like waves around the atom. Niels Bohr (Bohrbit) (1913) Electrons can orbit the nucleus in certain special orbits at different energy levels around the nucleus. Earnest Rutherford (foil) (1910) Fired beam of alpha particles at thin ...

Why is electronic structure important? - Answer All of chem is governed by transfer of electrons or the arrangement of electrons. How do you study electronic structure? - Answer Use interaction of light with matter to study the electronic structure. Light - Answer a "wave of energy" that consists of oscillating electric and magnetic fields. Frequency - Answer number of complete cycles pf electric fields that pass a given point per second. Wavelength - Answer distance between successive ...