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Flashcards in Gas laws questions and other goodies Deck (17):
1

An E cylinder has a full pressure of 1900 psi. we know that a full E cylinder of O2 will expand to approx 660L. what is the volume if the E cylinder?

and whos law

Boyle

2

Prove that a full E cylinder of O2 will expand to 660L at atmospheric pressure. first measure the internal capacity of an E cylinder by pouring water into one and measureing the capacity =5L

who's law

Boyles

3

A balloon is filled with air and has a pressure of 1 atm, a temp of 00C and a volume of 1L, what is the volume of the baloon at 1000C and a pressure of 1 atm

who law

Charles

4

A bouncy ball has a temp in the sun of 500C, a volume of 5L and a pressure of 760mmHg. if the pressure is maintained what is the volume at 00C

who's law

charles

5

An E cylinder was left in the sun on the loading deck of a hospital. it has a temp of 600C and a pressure of 2500psi. what will the pressure br in the cylinder at temp equilibrium of the OR (150C)

And whos law???

Gay-Lussac's

6

a 5 liter scuba tank has 500psi of air when read at 100C in the cold depths of the atlantic. what will the pressure of theis tank be after the divers return to the beach in august (500C)

and who's law

Gay-Lussacs

 

7

what is avogadro's hyothesis?

1 mole (6.022x1023) of a gas at STP occupies a volume of 22.4L

8

what law describes- the total pressure exerted by a mixture of gases is the sum of their individual oartial pressures?

Dalton's LAw of partial pressures

9

how is Dalton's law of partial pressures calculated?

 

atmospheric pressure at sea level

O2

N2

by multiplying the percent times the atmospheric pressure.

ex

O2 21%=0.21

N2 79%= 0.79

so.......

0.21 x 760 mmHg= 159.6 mmHg

0.79 x 760 mmHg= 600.4 mmHg

total = 760 mmHg

(this is at sea level only obviously change the atm pressure according to elevation)

 

10

WHat is the partial pressure of O2 and N2O if you are administering a 30/70 ratio

O2

30% = 0.30

0.30 x 760mmHg= 228 mmHg

 

N2O

70% = 0.70

0.70 x 760 mmHg = 532 mmHg

 

228 + 532 = 760 mmHg

(this is done assuming that we are at sea leverl do to no atm pressure being provoded in the question)

11

You have a E cylinder with a volume of 4.5L and a pressure of 2100 psi. If you open that cylinder in normal Atmospheric pressure how much volume will there be?

who's law

Temp is a constant so it's boyle's law

12

What is normal standard pressure

14.7 psi

=

1 atm

=

760mmHg

 

13

what is standard temp?

OoC

=

273 K

14

one mole of gas occuies what volume?

22.4 L

15

how long will a tank last at 10Lpm if it has a psi of 1000

0.33 x 1000= 330L

330L/10Lpm

=33min

16

what is critical temperature?

the temperature above which all gas, cannot be liquefied no matter how much pressure is applied.

17

To bring the extra badass out what are the critical temperatures for

O2

N2O

N2

add their critical pressures if you DARE!!!!!

CRITICAL TEMPS

N2- 126.3k

O2- 154.6k

N2O - 309.6k

(THESE ARE PLACED IN ASCENDING ORDER COLDEST FIRST TO THE WARMEST LAST)

Pressures are

N2O- 33.5 atm

O2- 49.8 atm

N2O- 71.5 atm