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Honors Chem > Unit 12 Test > Flashcards

Unit 12 Test Flashcards

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1
Q

what is the kinetic molecular theory

A

it explains the behavior of gases. it offers an explanation of some of the properties of gases

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2
Q

according to the kinetic molecular theory…

A

all matter consists of tiny particles that are in constant motions, particles in a gas are considered to be small round spheres with an insignificant volume, the motion of gas particles is rapid, constant, and random, and all collisions between gas particles are perfectly elastic

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3
Q

what is the equation for gas pressure

A

pressure = force/area

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4
Q

gas particles travel in what type of lines

A

straight lines

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5
Q

what is gas pressure the result of

A

billions of rapidly moving gas particles colliding with an object

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6
Q

what is atmospheric pressure

A

the pressure created by the earth’s gravitational pull on the gases in our atmosphere

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7
Q

what is a barometer

A

a device that is used to measure atmospheric pressure

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8
Q

whats the SI unit of pressure

A

pascal (Pa)

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9
Q

what is one standar atmosphere (atm)

A

the atmospheric pressure at sea level

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10
Q

what is dalton’s law of partial pressures

A

it states that the total pressure of a mixture of gases is the sum of the pressures of each of the individual gases

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11
Q

what is dalton’s law of partial pressures equation

A

Ptotal = P1 + P2 + P3……

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12
Q

what are the four big variables of a gas sample

A

pressure, volume, temperature, and amount

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13
Q

what is the unit for Pressure (P)

A

atm, mmHg, kPa….

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14
Q

what is the unit for Amount (n)

A

moles

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15
Q

what is the unit for temperature (T)

A

Kelvin (K)

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16
Q

what do you add to celcius to make it kelvin

A

273

17
Q

what is the relationship between pressure and volume

A

p1 + v1 = p2 + v2; inverse relationship

18
Q

what is an inverse relationship

A

as one goes up the other goes down

19
Q

what is the relationship between volume and temperature

A

v1 / t1 = v2 /t2; direct relationship; NEVER REACH 0

20
Q

what is a direct relationship

A

when one goes up the other goes up; TEMP CAN GO TO 0, VOLUME CANT

21
Q

what is the relationship between pressure and temperature

A

p1 / t1= p2 / t2; direct relationship; BOTH CAN REACH 0

22
Q

what is the combined gas law

A

allows us to use the three simple laws by eliminating the variable that is held constant; p1v1 / t1 = p2v2 / t2

23
Q

what is gay lussacs law

A

the relationship between pressure and temperature

24
Q

what is charles law

A

relationship between volume and temperature

25
Q

what is boyles law

A

relationship between pressure and volume

26
Q

what is avogadro’s law

A

the relationship between volume and amount of gas

27
Q

what is the equation for the relationship between volume and amount of gas

A

v1 / n1 = v2 / n2; direct relationship

28
Q

ideal gas law equation

A

PV=nRt

29
Q

variable for pressure

A

p

30
Q

variable for volume

A

v

31
Q

variable for number of moles of gas

A

n

32
Q

variable for universal gas constant

A

r

33
Q

variable for temperature

A

t

34
Q

what is the universal gas constant

A

the relationship between the four variables by assuming an ideal gas

35
Q

equation(s) for ideal gas law problems

A

R = 8.313 kPa * L / mol * K

0.0821 atm * L / mol * K

Honors Chem (10 decks)

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