Vocab Words

Question 0

Graph

Answer 0

Visual representation illustrating how one variable changes with another variable , or it is a to used to illustrate the relationship between two variables.

Question 1

Heats of solution

Answer 1

Heat absorbed when 1 mole of a solute is dissolved in a definite quantity of a pure solvent.

Question 2

Parallel lines

Answer 2

Two straight lines if they have identical slopes.

Question 3

Gas molecules

Answer 3

Held together by intermolecular forces, no regular shape, rapid motion, posses KE.

Question 4

Boiling point

Answer 4

Temperature at which vapor pressure of a liquid equals the atmospheric pressure.

Question 5

Later heat of vaporization

Answer 5

Heat absorbed when a liquid vaporizes at normal boiling point.

Question 6

Latent heat of fusion

Answer 6

Heat absorbed when a liquid vaporizes at normal boiling point

Question 7

Heat of fusion

Answer 7

Heat required to increase the inter atomic or intermolecular distances in the crystal allowing melting.

Question 8

Equilibrium of saturation solubility.

Answer 8

Maximum amount of a solute or drug that is present in the solution form per unit volume of a solvent at a constant temp and pressure.

Question 9

Equilibrium condition

Answer 9

When the rate of transfer of a solid in to the solvent and a rate deposition of a solute molecule from the solvent on to the solid crystal become equal.

Question 10

Solubility

Answer 10

Maximum among of a solute present in a solution form per unit volume of a solvent at constant temp and pressure following the attainment of equilibrium constant.

Question 11

Dynamic equilibrium

Answer 11

Rate of vaporization and rate of condensation become equal at a definite temperate, become saturated,

Question 12

Equilibrium vapor pressure

Answer 12

Pressure of saturated vapor above liquid.

Question 13

Solubility of a substance

Answer 13

Quantity that will dissolve in a specified quantity of solvent to form a saturated solution at given temperature.

Question 14

Saturated solution

Answer 14

Drug molecules in a solution are in equilibrium w/ excess of solute in a solution.

Question 15

Supersaturated solution

Answer 15

Solution containing more of the dissolved solute than it would normally contain at a definite temperature.

Question 16

Molarity of molar solution

Answer 16

Moles of a solute present in 1000 grams of solvent.

Question 17

Mole fraction

Answer 17

Ratio of moles of one constituent of a solution to tot moles of all other constituents.

Question 18

Normality at normal solution

Answer 18

Gram equivalent weight of a solute in 1 liter of solution.

Question 19

Molarity of molal solution

Answer 19

Moles of solute present in 1000 grams of solvent.

Question 20

Polymorphism

Answer 20

Substance crystallizing in more than one crystal form.

Question 21

Enantiotropic

Answer 21

Changing from one polymorph to another is reversible by varying temperature or pressure.

Question 22

Monotropic

Answer 22

Changing from one form to another In the same direction.

Question 23

Metastable

Answer 23

High energy form polymorph w ⬇️mp and ⬆️Solubility…. Most desirable form.