Quiz Answer Key and Fun Facts
1. His principle states that a system in equilibrium will shift in a direction that relieves a stress placed on the equilibrium.
Equilibrium- a point in time when the forward and reverse reaction rate are equal.
Stress- something that causes the equilibrium to move (heat, more reactants, pressure for gases, etc.).
2. One of the colligative properties, vapor pressure lowering, is based on this law.
colligative properties- properties of solutions that have a greater effect when there is more solute than solvent.
vapor pressure lowering- the boiling point is harder to reach because the gases above the solution press down less than the gases above a pure substance.
3. This law states that the total enthalpy change of a complex reaction is equal to the sum of the enthalpy changes of each step.
enthalpy- the change of heat/energy content in a system. An ice cube melting would show an increase in enthalpy (it's absorbing energy).
complex reaction- a reaction with more than one step.
4. This law states that the entropy of a universe must always increase, even though the entropy of a system can decrease.
entropy- the disorder of a system (a shuffled deck of cards is much more disorganized than a freshly opened pack).
5. This law states that entropy of a pure substance at absolute zero is zero.
6. His guidelines must be used to determine the ultimate cause of an illness in an organism. A serum from a sick organism is taken and placed into a healthy organism. When the healthy organism becomes ill, it must display the same symptoms as the old organism, and it must show signs of the same pathogen (infecting agent).
7. Light was determined to be a massless particle holding great energy from this effect, which stated that particles could only absorb quantas (certain amounts) of energy.
8. It states that electrons in the same orbital must have opposite spins.
orbital- a given area where electrons will "stay" most of the time.
9. You cannot know both momentum and position of a particle at one time (Imagine a rolling ball caught in a picture and a ball sitting at that exact same spot).
10. This gas law states that gases at equal volumes, temperatures, and pressures have the same molar volume (they will have the same amount of molecules).
Source: Author
GoNorcross
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crisw before going online.
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