Gas Phase

Question 1

sphygomomanaometers

Answer 1

medical device that measures blood pressure – barometer

Question 2

Gases

Answer 2

the least dense phase of matter
conform to the shapes of their containers (fluid does the same)
easily compressible

Question 3

Standard temperature and pressure (STP)

Answer 3

273K (0C) and 1 atm

Question 4

ideal gas law

Answer 4

describes the relationship between the four variables of the gas state for an ideal gas.

Question 5

Avogadros principle

Answer 5

special case of the ideal gas law for which the PRESSURE and TEMPERATURE are held constant

shows a direct relationship between the number of moles of gas and volume

Question 6

Boyles law

Answer 6

special case of the ideal gas law for which the TEMPERATURE and NUMBER OF MOLES are held constant

shows an inverse relationship between pressure and volume

Question 7

Charle’s law

Answer 7

special case of the ideal gas law for which the PRESSURE and NUMBER OF MOLES are held constant

shows an direct relationship between temperature and volume

Question 8

Gay - Lussac’s law

Answer 8

special case of the ideal gas law for which VOLUME and NUMBER OF MOLES are held constant

shows a direct relationship between temperature and pressure

Question 9

combined gas law

Answer 9

is a combination of Boyle’s, Charle’s, and Gay Lussac’s law

it shows an inverse relationship between pressure and volume along with direct relationships between pressure and volume with temperature.

Question 10

Dalton’s law of partial pressure

Answer 10

states that individual gas components of a mixture of gases will exert individual pressures in proportion of their mole fractions.

The total pressure of a mixture of gases is equal to the sum of the partial pressure of the component gases.

Question 11

Henry’s law

Answer 11

states that the amount of gas dissolved in solution is directly proportional to the partial pressure of that gas at the surface of a solution.

Question 12

kinetic molecular theory

Answer 12

attempts to explain the behavior of gas particles.

It makes a number of assumptions about gas particles.

Question 13

gas particles

Answer 13

have negligible volume
do not have intermolecular attractions or repulsion
undergo random collisions with each other and the walls of the container

Question 14

collision between gas particles are

Answer 14

elastic

Question 15

the average kinetic energy of gas particles is __________ proportional

Answer 15

directly

Question 16

Graham’s Law

Answer 16

describes the behavior of gas diffusion or effusion, stating that gases with lower molar masses will diffuse or effuse faster than gases with higher molar masses at the same temperature

mathematically: r1/r2 = SQRT*M1/M2

Question 17

diffusion

Answer 17

the spreading out of particles from high to low concentration

Question 18

effusion

Answer 18

the movement of gas from one compartment to another through a small opening under pressure