# ideal gas law conditions 2009 dat

#### ehwang1126

2+ Year Member
Q68: The volume of an ideal gas approaches zero as the temperature approaches
-273 C

I picked 0 C because I thought the ideal gas laws were when it's high T and low P?

I looked at chads vid on gases again and he also said that STP (1 atm and 0 C) are relatively low P and high T.

#### starsbeneathme

2+ Year Member
focus on the ideal gas law equation: PV=nRT. we can assume pressure and mols stay constant, so we're really just looking at V = T.
so if volume = 0, then temperature should equal 0 K (don't forget that temperature is in kelvin). 0 K is the same thing as -273 C.

OP
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#### ehwang1126

2+ Year Member
focus on the ideal gas law equation: PV=nRT. we can assume pressure and mols stay constant, so we're really just looking at V = T.
so if volume = 0, then temperature should equal 0 K (don't forget that temperature is in kelvin). 0 K is the same thing as -273 C.
Oh so when they say "ideal gas" it's referring to the volume of the container/gas as a whole. I thought that they were talking about the idea of individual gas molecules having no volume, but that makes sense, thanks!