Gases

Question 1

What is kinetic molecular theory

Answer 1

All substances contain entities that are inconstant random motion

Question 2

What are the types of motion the states of matter particles experience

Answer 2

SOlids - vibrational
Liquids - vibrational translational rotational
gas - vibrational, translational, rotational

Question 3

How does temp affect the statee

Answer 3

The higher the temp the more the kinetic energy which is more likely to overcome the attractive forces between particles and become a gas
cooler substance is more likely to be solid or a liquid

Question 4

What are the rules of an ideal gas

Answer 4

1. particles have negligible voluem
2. no attraction or repulsion forces bewteen particles
3. gas particles move randomly in straight lines
4. Collisions are completely elastic
5. avg kinetic eng is directly related to the temp (higher temp higher eng)

Question 5

What are problems with the ideal gas law

Answer 5

In small quantities the volumes of the gas molecules are significant part
Motion is random not straight lines
attraction exists

Question 6

What is a mercury barometer

Answer 6

Mercury in an inverted tube in a pan.
Gravity pushes the mercury down but pressure pushes the mercury back up from the pan. Measuring the height of the mercury gives Hg(mm)

Question 7

How much is 1 atm in kpa

Answer 7

101.325 kpa

Question 8

STP vs SATP

Answer 8

standard temp and pressure - 0C and 101.325 kpa
Standard ambient temp and pressure - 25C and 100.00KPA

Question 9

how many mm Hh in a kPa

Answer 9

760 mm Hg

Question 10

how many PSI in 1 kPa

Answer 10

6.895 Psi

Question 11

What is boyles law

Answer 11

P1V1 = P2V2
constant temp and gas amt

Question 12

How to convert to kelvin from Celcius

Answer 12

temp+273.15 = kelvin

Question 13

What is charles law

Answer 13

V1/T1 = V2/T2
Constant pressure and gas amt

Question 14

What is Gay-lussec law

Answer 14

P1/T2 = P2/T2
Constant volume and gas amt

Question 15

What is the combined gas law

Answer 15

P1V 1/T1 = P2V2/T2

Question 16

What is the law of combining volumes

Answer 16

when temp and press are the same, the volumes of the reactants and products are in same ratio as molar ratio

Question 17

What is avogadros law

Answer 17

V1/n1 = V2/n2
temp and pressure are constant

Question 18

What is the molar volume

Answer 18

The space one mole of the gas occupies
1 mole of gas at STP is 22.4L
1 Mole of gas at SATP is 24.8L

Question 19

Wwhat is ideal gas law

Answer 19

PV=nRT
R = 8.314 kPa·L/mol·K

Question 20

What is daltons law

Answer 20

Law of partial pressures
Ptot = P1+P2+P3…
temp and volume are constant