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Chemistry > unit 12: gas laws > Flashcards

unit 12: gas laws Flashcards

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1
Q

boyles law

A

P1V1 = P2V2

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2
Q

Charles’ laws

A

V1/T1=V2/T2

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3
Q

Gay-Lussac’s law

A

P1/T1 = P2/T2

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4
Q

Avogadro’s law

A

V1/n1 = V2/n2

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5
Q

Combined gas laws

A

P1V1/T1 = P2V2/T2

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6
Q

Constant, non STP gas CONDITIONS (volume, temp, moles, etc.)

A

PV=nRT

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7
Q

Ideal gas constant for mmhg/torr

A

62.4 mmhg L / mol K

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8
Q

Ideal gas constant for atm

A

0.0821 atm L / mol K

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9
Q

Ideal gas constant for kPa

A

8.31 kPa L / mol K

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10
Q

Density calc at non STP

A

PM = DRT

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11
Q

Given grams, asks for volume at non stp

A

stoich, then PV=nRT

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12
Q

given liters, asks for mass at non stp

A

PV=nRT, then stoich

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13
Q

STP for mmhg/torr

A

760.0

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14
Q

STP for kPa

A

101.3 kPa

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15
Q

STP for psi

A

14.7 psi

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16
Q

STP for atm

A

1 atm, obviously

17
Q

what relationship is boyles law and how does it work

A

gases are compressible, as volume decreases amount of collisions increase (particles closer together)

18
Q

what relationship is charles law and how does it work

A

temp goes up, volume goes up because faster particles (higher temp) = more collisions and spreads out

19
Q

what relationship is gay-lussacs law and how does it work

A

temp goes up, pressure goes up because faster particles means more collisions

20
Q

how does avogadros law work

A

equal volumes of all gases, at
the same temperature and
pressure, have the same
number of particles

21
Q

Ideal gas laws (5)

A
  1. particles move randomly and rapidly
  2. particles have no mass
  3. particles do not attract or repel each other
  4. particles are elastic (no energy gained or lost during collision)
  5. particles avg kinetic energy is exactly proportional to the temperature
22
Q

what makes a gas more ideal? (5)

A
  1. little mass (like no mass)
  2. no electrons (less repel)
  3. Low pressure (further away particles, no repel)
  4. high temp (too fast, no repel)
  5. nonpolar or weak attractive forces (no repel)

Chemistry (18 decks)

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