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Chemistry > Gas Laws > Flashcards

Gas Laws Flashcards

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0
Q

Charles’s Law

A

Temperature-Volume relationship

V1/T1=V2/T2

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1
Q

Boyle’s Law

A

Pressure- Volume Relationship

P1xV1=P2xV2

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2
Q

Gay-Lussac’s Law

A

Temperature-Pressure relationship

P1/T1=P2/T2

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3
Q

Combined Gas Law

A

Combines all three laws (boyles,Charles,gay-lussac)

P1V1/T1=P2V2/T2

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4
Q

Ideal Gas Law

A

n= number of moles
R= ideal gas constant= 8.31LkPa
mol K

PxV= nxRxT

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5
Q

Dalton’s Law

A

At constant volume and temperature, the total pressure exerted by a mixture of gases is equal to the sum of the partial pressures of the component gases.

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6
Q

Diffusion

A

Is the tendency of molecules to move toward areas of lower concentration until the concentration is uniform throughout

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7
Q

Effusion

A

The process in which a gas escapes through a tiny hole in its container

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8
Q

Graham’s Law

A

The rate of effusion of a gas is inversely proportional to the square root of the gas’s molar mass
Ex: how much faster will He2 escape from a container compared to N2
square root of 28/sq root of 4= 2.7xfaster

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9
Q

Volume of sphere

A

V=4(3.14)r^3/3

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10
Q

Gas Laws

1) volume
2) temperature
3) pressure

A

1) v=22.4L
2) t=273K
3) p=101.3Kpa

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11
Q

How do gas particles move?

A

Rapidly in constant motion

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12
Q

When do gas particles change direction?

A

When they collide

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13
Q

What kind of collisions do they make?

A

Perfectly elastic

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14
Q

Explain the kind of collision

A

Kinetic energy is transferred

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15
Q

What is pressure measured in?

A

Kilopascal(kpa)

16
Q

What letter corresponds with moles?

A

n

17
Q

What is R in PV=nRT?

A

Ideal gas constant 8.31

18
Q

What is temp measured in?

A

Kelvin(K)

19
Q

What is volume measured in?

A

Liters(L)

20
Q

Gases move from____pressure to____pressure

A

Higher; lower

21
Q

As volume___pressure____

A

Decreases; increases

22
Q

As temp___pressure___

A

Decreases;decreases

23
Q

STP

A

Standard temp and pressure

24
Q

Partial pressure law

A

Dalton’s law

Chemistry (7 decks)

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