gen Chem pg 5

Question 1

ideal gas law

Answer 1

PV=nRT

Question 2

density of a gas

Answer 2

density= PM/RT

Question 3

another formula with density in it

Answer 3

M= dRT/P

Question 4

combined gas law

Answer 4

PV/T = PV/T

Question 5

avogadro principle

Answer 5

n/V= k

or n/V = n/V

Question 6

boyles law

Answer 6

PV= PV (hyperbolic V P graph)

Question 7

charles law

Answer 7

V/T=V/T

linear graph

Question 8

guy lussacs law

Answer 8

P/T= P/T linear graph

Question 9

daltons law

Answer 9

P total= P of a + P of b etc

Question 10

daltons law particle pressure from P total

Answer 10

P of gas= X of gas (P total)

X is mole fraction

Question 11

mole fraction of A

Answer 11

mol A/ total moles

Question 12

henrys law

Answer 12

[A]= kH (P of A)

or [A]/P= [A]/P

Question 13

average kinetic energy of gas

Answer 13

KE= 1/2 mv^2 = 3/2 kB T

kB is boltzmann constant

Question 14

root mean square speed

Answer 14

= square root of (3RT/M)

Question 15

grahams law

Answer 15

rate= 1/square root M

or rate 1/rate 2 = square root (M2/M1)

smaller moves faster

Question 16

van der walls equation of state (deviation from ideal gas)

Answer 16

takes into account intermolecular attraction and molecular volume

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

P is directly prop to -a

Question 17

ideal gas is most ideal at

Answer 17

high T and low P

Question 18

gas deviates from ideal at

Answer 18

low T, high P (small V)

Question 19

diatomic

Answer 19

Br I N Cl H O F

Question 20

gases at room temp

Answer 20

N Cl H O F

Question 21

Blood pressure is

Answer 21

< 120/80

Question 22

constant R

Answer 22

0.08 L atm/mol K

or 8.3 J/mol K

or 8.3 L kPa/mol K

Question 23

Pressure =

Answer 23

force/area = N/m^2

= Pascal

Question 24

STP

Answer 24

273 K

Question 25

pressure units

Answer 25

1 atm = 101 kPa= 101000 Pa= 760 torr= 760 mmHg