pressure ( gas pressure) Flashcards
gas pressure is
the total force exerted by all the particles in the gas on a unit area of the container walls
if the force per unit area of the particles decreases then gas pressure will ___
decrease
increasing the temperature of a gas means that the particles will
move faster
for a gas with a constant volume, if you increase the temp, then the force exerted on the container walls will also increase because (2)
- what would happen to the gas pressure
- particles will collide more often with the walls of the container
- the particles will produce a larger force on the container
- would increase
if you decrease temperature, the particles move ____ and the pressure ____
slower, decreases
at a constant temperature, decreasing volume would ____ pressure
increase
decreasing the volume of a container would mean that
the gas particles have less room to move so the particles would collide with the container walls more often
equation to find changes in volume and pressure at a constant temperature
pV= constant
P1V1=P2V2
( if you increase the volume, the particles will collide less often with the wall so the pressure would decrease)
pressure in liquids acts _____ in all directions as long as ________
equally
as long as the liquid is not moving
relationship between pressure an kelvin temperature of a fixed mass of gas at a constant volume is
p1 / T1 = p2 / T2
kelvin temperature of a gas is proportional to what
average kinetic energy of its particles
at absolute 0, particles will have
no thermal energy or kinetic energy, so they cannot exert a force.
absolute 0 = ___ kelvin and ____ ºC
0 kelvin
-273ºC
how do you transfer kelvin to celcius
- 273
if i hd 200ªC what would that be in kelvin
473
