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Flashcards in Molecular Kinetic Theory Deck (22)
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1

What is the relationship between pressure and temperature?

p∝T

2

What is the pressure law?

p1/T1 = p2/T2

3

What scale do all of the gas equations use?

Absolute temperature scale

4

What must be the properties of molecules at absolute zero?

- Zero KE
- Zero pressure
- Zero volume

5

What is the relationship between the volume of a gas and its absolute temperature?

V ∝ T

6

What is the volume law/Charles' Law?

V1/T1 = V2/T2

7

What is the relationship between the volume of a gas and pressure?

p ∝ 1/V

8

What is the combined gas equation?

p1V1/T1 = p2V2/T2

9

What are the main limitations of the combined gas equation?

The pressure, temperature or volume of a specific mass of gas cannot be calculated.

10

What is the molar gas constant?

8.31JK^-1mol^-1

11

What is the equation of state?

pV = nRT where: p(Pa/N/m^2), V(m^3), T(K)

12

What is an ideal gas?

A gas that obeys the equation of state under all conditions.

13

What is the relationship between pressure and the mean speed of gas particles?

p = 1/3ρ(c^2) where c^2 = mean of speeds squared

14

What are the assumptions made to link pressure and speed of gas particles?

P
(R)andom
(I)dentical
(V)olume
(A)ttraction
(T)ime
(E)lastic

15

Define random movement

Range of speeds in a range of directions where all motions are equally probable.

16

What is the relationship between pressure and the speed of gas particles?

p = 1/3ρc^2

17

How is Crms calculated?

√c^2

18

What is the relationship between rms speed and pressure?

p = 1/3ρcrms^2

19

What is the relationship between pV and Crms^2

pV = 1/3Nmcrms^2

20

How is the total kinetic energy of n moles of gas calculated?

1/2Mc^2 = n3/2RT

21

What is the relationship between crms and the molar mass of the gas?

Crms = √3RT/M

22

How is the average kinetic energy of one particle in a gas calculated?

1/2mc^2 = 3/2kT where k = the Boltzmann constant