KMT OF GASES

Question 1

true or false:

gases consists of very small particles and the distances separating these particles are very large

Answer 1

true

Question 2

true or false:

gas particles are in constant, rapid, and random motion.

Answer 2

true

Question 3

true or false:

gas particles exert force on one another

Answer 3

false:

no force

Question 4

true or false:

when gas particles collide the kinetic energy is lost.

Answer 4

false:

not lost, but transferred

Question 5

true or false:

the average kinetic energy of gas particles are dependent upon the temp. of a gas

Answer 5

true

Question 6

true or false:

gas particles experience elastic collision.

Answer 6

true

Question 7

what are the five physical characteristic of gases?

Answer 7

1. shape and volume
2. density
3. compressibility
4. miscibility
5. exerts pressure

Question 8

what are the behaviors of gases based on?

Answer 8

volume, temperature, number of moles, and pressure

Question 9

what is the relationship of pressure and elevation?

Answer 9

• higher elevation, lower pressure (indirect relationship)
• higher altitude = lower boiling point

Question 10

which law states that pressure and volume are inversely proportional at a constant temp. of a gas in a closed container?

Answer 10

boyle’s law

Question 11

which law states that the temperature is directly proportional to the volume it occurs if the pressure and mass (amt. of gas) remain constant in a closed container?

Answer 11

charles’s law

Question 12

which law states that the temperature is directly proportional to the pressure if the volume of a gas and mass remain constant in an enclosed container?

Answer 12

gay-lussac’s law

Question 13

which law states that the volume of gas is directly proportional to the number of moles, assuming **tempertaure and pressure are constant **

Answer 13

avogadro’s law

Question 14

what is the formula for the combined gas laws?

Answer 14

pv/t = k (pressure x volume/ temperature = constant)

Question 15

which law does this represent?

a scuba diver descends underwater, the pressure increases, and the volume of the air in her lungs decreases

Answer 15

boyle’s law

Question 16

which law does this represent?

amelia and stacey went on a hot air balloon and they found out how hot air balloons operate. when the air inside the balloon is heated it expands, increasing its volume, allowing it to rise.

Answer 16

charles’s law

Question 17

which law does this represent?

a doctor pulls back the plunger of a syringe, it increases the volume inside the syringe, which decreases the pressure, allowing fluid in.

additionally,
the doctor pushes the plunger back and the volume decreases, increasing the pressure forcing fluid out.

Answer 17

boyle’s law

Question 18

what law does this represent?

a baker decides to bake cupcakes to sell. the air gas bubbles trapped in the batter expand as the temperature increases in the oven meaning the volume of the dough increases.

Answer 18

charles’s law

Question 19

which law does this represent?

alissa bought a new pressure cooker. when she was cooking she noticed the as temperature increases, the pressure increases, which speeds up the cooking process.

Answer 19

gay-lussac’s law

Question 20

gracie was filling balloons for a party. when she blew air into a balloon, she added more gas molecules inside it, increasing the volume of the balloon.

Answer 20

avogadro’s law

Question 21

if you boil water in manila and baguio, where will it boil faster? explain why.

Answer 21

it will boil faster in baguio since baguio has a higher altitude, meaning it has a lower boiling point

Question 22

what principle of pressure in motion is seen?

in aerosol cans the gas is compressed into a smaller volume, increasing its pressure. when you press the nozzle, the high pressure gas is released, expanding into a larger volume outside the can, which allows the contents to be sprayed out as a mist or foam

Answer 22

the relationship of volume and pressure

lower volume, higher pressure (indirect relationship)