Gases Flashcards

1
Q

Gas molecules have no definite ___ or ___, are widely ___ and can be easily ____. They are in ___, constant motion

A

size, shape, separated, compressed, random

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Atoms which exist in pairs due to unstable nature, and high reaction as a single atom

A

diatomic gases

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Temperature is the measure of __ __ or movement of gas particles. Movement increase the ____ and, thus when collisions occurs, there is more energy or ___ transfer.

A

kinetic movement, velocity, heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Gases do not have distinct ___, instead they take up the shape of the container.

A

volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

pressure is the ___ of the gas particles colliding with the __ of the container. An increase in _____ results in a decrease in pressure

A

force, colliding, area

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

When gas is confined to a container, an external force can compress that gas, and the volume ____. This results in more ____, and thus more ____.

A

decrease, collision, pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

When the gas is expanded, the volume is ___, __ collisions, and __ pressure

A

increased, decreased, decreased

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Expansion and compression of gasses is easy because there is a lot of ___ between the particles

A

space

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Boyle’s law is given by the equation _____. It says that the pressure and volume are ___ ___ under constant temperature and ___.

A

P1V1=P2V2, inversely proportional, moles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Charles law is given by the equation ____. It says that the __- and ___ are directly proportional under constant pressure and moles

A

V1/T1=V2/T2, volume temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Avogadro’s law is given by _____. It says that __ and ___ are directly proportional under constant __ and pressure

A

V1/n1=V2/N2, volume, moles, temperature

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Gay-Lussac’s law is given by ______. It says that pressure and ___ are directly proportional under constant __ and ___

A

Pi/T1=P2/T2, mass, volume, moles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

The combined gas law is given by

A

PiV1/T2n1 = P2V2/n2T2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

An ideal gas behaves in __, __ and ___ motion, according to the kinetic molecular theory of gases

A

constant, random, straight-line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

The kinetic molecular theory gasses states that particles in a gas are in constant, ____ motion, the combined __ of the particles is negligible, the particles exert no ___ on one another, the gas molecule collisions are completely ___, meaning there are no ___ ___ between the gases, and all gases have the same __ ___ __ at a given temperature.

A

random, volume, forces, elastic, intermolecular forces, average kinetic energy

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

At ___K the volume of a gas is 0

A

0

17
Q

Gases behave most ideally at __ __, because the gases are far apart, meaning there are less _____ ___, and interactions. It also behaves most ideally at __ ___, as the gas are __ __ and thus there is an decrease in intermolecular forces

A

low pressure, intermolecular forces, high temperature, moving faster

18
Q

The ideal gas law is given by

A

PV=nRT

19
Q

Standard temperature is ____ and pressure is _____ for an ideal gas. 1 mole of a gas at STP is ___L

A

273, 1 atm, 22.4

20
Q

In a mixture of gasses, the pressure created by one molecule is ___ of one another

A

independent

21
Q

Dalton’s law of partial pressure says that the total pressure of the mixture is equal to the sum of the __ __ of individual gases. The partial pressure of one gas is given by the ____

A

partial pressures, moles of gas 1/total moles x total pressure

22
Q

The mass of a gas occupying a certain volume

A

gas density

23
Q

The gas density is given by _______

A

PMw/RT

24
Q

when molecules move from high to low concentration

A

diffusion

25
Q

When a confined gas escapes through a small hole

A

effusion (r)

26
Q

The effusion rate is highest for ____, and lowest for ____. The gas with the __ ____ __ effuses faster

A

gasses, solids, lower molecular weight

27
Q

Graham’s law of effusion says the rate of the effusion of a gas is __ ___ to the square root of its ___ ____. This is why __ gasses tend to diffuse much more rapidly than heavier ones. The law is given by the equation ____

A

inversely proportional, molar mass, lighter, r1/r2 = (Mw2/Mw1)^(-1/2)

28
Q
A