PHA 317 Exam 1 ACTUAL UPDATED Questions and CORRECT Answers

PHA 317 Exam 1 ACTUAL UPDATED
Questions and CORRECT Answers
convert K to C - CORRECT ANSWER - -273.15



convert F to C - CORRECT ANSWER - (5X (F-32))/9



1 angstrom is equal to ____ m - CORRECT ANSWER - 10^(-10)



keesom forces - CORRECT ANSWER - dipole-dipole



debye forces - CORRECT ANSWER - dipole-induced dipole



london forces - CORRECT ANSWER - induced dipole-induced dipole



electrostatic forces (3) - CORRECT ANSWER - ionic
ion dipole
dipole-dipole


hydrogen bonds have both - CORRECT ANSWER - ionic and dipolar forces



enatiotropic - CORRECT ANSWER - two different polymorphs stable at 2 different
temperature ranges


monotropic - CORRECT ANSWER - only one polymorph is stable at all temps below mp
(others aren't stable


hydrates - CORRECT ANSWER - if the solvent is H2O

, amorphous solids - CORRECT ANSWER - random order, tend to flow, have a range of
mp


isotropic solids - CORRECT ANSWER - similar properties in all direction
-amorphous


anisotropic solids - CORRECT ANSWER - different properties in different directions
-crystalline solids


partially crystalline solids - CORRECT ANSWER - beeswax



multicomponent system - CORRECT ANSWER - both amorphous and crystalline



real gas law (3) - CORRECT ANSWER - volume of gases is not negligible
collision between particles is not perfectly elastic
attraction and repulsion forces occur


kinetic molecular theory (5) - CORRECT ANSWER - 1. molecules are in random motion,
colliding with each other
2. rate of motion is invite temp in kelvin
3. molecules are completely elastic
4. large intermolecular distances
5. no attraction or repulsion between particles


first law of thermodynamics - CORRECT ANSWER - Law of Conservation of Energy,
states that energy cannot be created or destroyed in an isolated system.