Gases Evaluation (12.18.2020) Flashcards Preview

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Flashcards in Gases Evaluation (12.18.2020) Deck (30)
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1

____consist of small particles that move rapidly in straight paths, have no attractive forces, are very far apart, have very small volumes compared to the volume of the container they occupy, and have kinetic energies that increase with an increase in Kelvin temperature

Gases

2

_____ is the pressure exerted by a column of air from the top of the atmosphere to the surface of the Earth and is about 1 atmosphere or a little less at sea level

the atmospheric pressure

3

____ is the force exerted by a gas against the walls of the container

pressure

4

___ is the space occupied by a gas

volume

5

___ is the determining factor of the kinetic energy and rate of motion of gas particles

temperature - Kelvin is required in calculations

6

_____ is the quantity of gas present in a container

amount (n) - moles is required in calculations

7

___ is described as a force acting on a specific area

gas pressure

8

pressure equals

force/area

9

_____ millimeters of Hg (mmHg) is equivalent to 1 atm

760 mmHg

10

_____ torr is equivalent to 1 atm

760 torr

11

______ inches of Hg (in. Hg) is equivalent to 1 atm

29.9 in Hg

12

___ pounds per square inch (lb/in^2) (psi) is equivalent to 1 atm

14.7 lb/in^2

13

____ pascal (Pa) is equivalent to 1 atm

101.325 Pa

14

____kilopascal (kPa) is equivalent to 1 atm

101.326 kPa

15

Boyle's law states that the...

pressure of a gas is inversely related to its volume when T and n are constant

16

If pressure increases, then the volume ____

decreases (Boyle's)

17

Boyle's law can be stated as...

P1V1 = P2V2

18

Charles's Law states that the...

Kelvin temperature of a gas is directly related to the volume (P and n are constant)

19

When the temperature of a gas increases, its volume ____

increases (Charles's)

20

#K =

degrees celsius + 273.15

21

Charles's Law is written as...

V1/T1 = V2/T2

22

Gay-Lussac's Law states that...

the pressure exerted by a gas is directly related to the Kelvin temperature (V and n are constant)

23

Gay-Lussac's Law can be written as...

P1/T1 = P2/T2

24

Avogadro's Law states that...

the volume of a gas is directly related to the number of moles of gas (T and P are constant)

25

Avogadro's Law can be written as...

V1/n1 = V2/n2

26

The molar volume of a gas is measured at STP (standard pressure and temperature) and is ___ for exactly __ of a gas

22.4L; 1 mol

27

the _____ of a gas is the pressure of each gas in a mixture and is the pressure that each gas would exert if it were by itself in the container

partial pressure

28

Dalton's Law states that the total pressure...

depends on the total number of gas particles, not the types of particles and is exerted by a gas mixture as the sum of the partial pressures of those gases

29

Dalton's Law is written as...

PT = P1 + P2 + P3 +...

30

partial pressure equals

the number of moles of that component (RT/V) or for multicomponent, Pa = na(RT/V) + Pb = nb(RT/V) + Pc = Nc(RT/V)...