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FA chemistry
| Question | Answer |
|---|---|
| Reaction Rates | the rates of a chemical change usually expressed as the amount of reactant forming products per unit time. |
| Equilibrium Constant | the rate at which the production of reactants is the same as the rate of production in a chemical equation, when the equation is balanced. |
| Reversible Reactions | the amount of products to reactants |
| Factors affecting the reaction rate | increase of temperature, increase of concentration, decrease in particle size, employ a catalyst. |
| Le Chatelier's principle | when stress is applied to a system in dynamic equilibrium, and this causes the system to change in order to relieve the stress. |
| Transmutation | the conversion of an atom of one element to an atom of another element |
| Alpha decay | atomic mass decrease by 4 atomic number decrease by 2 |
| Beta Decay | atomic mass stays the same and atomic number decrease by 1 |
| beta capture | atomic mass stays the same and atomic number gains 1 |
| gamma decay | no mass, travels at the speed of light, stays the same. |
| half lives | the time required for one-half live of the nuclei of a radioisotope sample to decay to products |
| quarks | a particle with a negative charge 1/3 or 2/3 charge of an electron |
| quanta | the amount of energy needed to move an electron from one energy level to another. |
| photon | a quantum of light; electromagnetic energy that interacts with matter similarly to particles |
| energy of a photon | (e=hf) |
| Planck' Constant | physical constant reflecting the sizes of energy quanta in quantum mechanics |
| The law of thermodynamics | energy cannot be created or destroyed (heat is work, and work is heat), heat ALWAYS flows from hot to cold, if all molecular motion is stopped then it all becomes absolute 0 |
| conduction | the passage of energy through direct contact |
| convection | the passage of energy through bulk movement of fluids. |
| radiation | the passage of energy through space without a medium. |
| heat of Fusion | when heat is absorbed by a soild substance as it melts to a liquid at a constant temperature |
| heat of vaporization | the amount of heat necessary to vaporize a given liquid |
| Charles' Law | volume of mass of gas is directly proportional to it Kelvin Temperature. |
| Boyle's Law | the volume of gas varies inversely with the pressure. |
| Combined Gas Law | Combines Gay-Lussac's, Charles and Boyle's Law to make all three one law.. |
| Ideal Gas Law | Equation of state of a ideal gas. |