Ch 6 Lec 2 - Gases

Question 1

the total pressure of a mixture of gases equals the sum of the pressures that each gas would exert if present alone

Answer 1

Dalton’s law of partial pressures

Question 2

pressure exerted by a single component

Answer 2

partial pressure

Question 3

kinetic molecular theory of gases where gases consist of large blank of molecules that are in blank random motion

Answer 3

numbers, constant

Question 4

kinetic molecular theory of gases where the combined blank of molecules in a gas is negligible compared to the blank volume

Answer 4

volume, total

Question 5

kinetic molecular theory of gases where blank forces between blank molecules are blank

Answer 5

attractive and repulsive, gas, negligible

Question 6

kinetic molecular theory of gases where energy can be blank between molecules when they blank but the average blank of the molecules doesn’t change with time (at constant temp)

Answer 6

transferred, collide, kinetic energy

Question 7

kinetic molecular theory of gases where the blank of the molecules is proportional to absolute blank

Answer 7

average kinetic energy, temperature

Question 8

although gases have an blank and blank, individual molecues travel at varying blank

Answer 8

average kinetic energy, an average speed, speeds

Question 9

at higher temperatures, average speed blank

Answer 9

increases

Question 10

larger molecules are blank than smaller molecules at the same temperature

Answer 10

slower

Question 11

the peak of the percent molecules and increasing speed graph

Answer 11

modal speed

Question 12

speed of a molecule that possesses the average KE of the gaseous sample

Answer 12

root-mean-squared speed

Question 13

Kinetic energy equation

Answer 13

.5m(urms)^2

Question 14

urms equation

Answer 14

sqrt(3RT/molecular mass in kg/mol)

Question 15

Joules equation

Answer 15

kgm^2/s^2

Question 16

if volume increase then KE blanks and urms blanks

Answer 16

stays the same

Question 17

if volume increases then the distance between molecules blanks

Answer 17

increases

Question 18

if volume increases, there are blank collisions between molecules and container walls

Answer 18

fewer

Question 19

if volume increases, pressure blanks

Answer 19

decreases

Question 20

if temp increases then pressure blanks

Answer 20

increases

Question 21

spreading out of gas molecules throughout a space or room

Answer 21

diffusion

Question 22

escape of gas molecules through a tiny pinhole from container

Answer 22

effusion

Question 23

graham’s law of effusion says that the rate of effusion of a gas is blank proportional to the blank of its mass

Answer 23

inversely, square root

Question 24

graham’s law of effusion equation

Answer 24

sqrt(mass of B/mass of A)

Question 25

van der waals equation

Answer 25

(P+((n^2a)/v^2)))(V-nb)=nRT

Question 26

a and b in van der waals equation generaaaaaaaaaally blank with increasing blank

Answer 26

increase, mass