Equation of state for an ideal gas

AI Thread Summary
For the ideal gas equation PV=nRT to hold true, the gas must be an ideal gas, which consists of separate particles that behave as point masses. The particles should be far apart and not exert forces on each other, and they must undergo elastic collisions. The conditions of constant pressure, volume, and temperature are not required for the equation's validity, as these variables can change. The discussion emphasizes the importance of understanding the assumptions behind the ideal gas law. Overall, the ideal gas law applies under specific conditions that characterize ideal gas behavior.
imy786
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Homework Statement



What condition must the gas be in for this equation to hold true?

Homework Equations





The Attempt at a Solution



the gas has to be in constant pressure and volume and temperaute
 
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How about writing the relevant equation?

And what is mentioned in one's textbook or course notes?
 
PV= nRT
What condition must the gas be in for this equation to hold true?

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the gas has to be in constant pressure and volume and temperaute
 
imy786 said:
PV= nRT
What condition must the gas be in for this equation to hold true?

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the gas has to be in constant pressure and volume and temperaute
Nope, not quite (if P,V and T were always constant what would be the point of the equation...? :-p). When we say an ideal gas, what do we assume about the gas?
 
PV=nRT

condtion to be valid:

the gas has to be an ideal gas,

1.gas composed of seprate particles
2.particles behave as point masses
3.point of mass are far apart and do not exert any force


is this correct??
 
imy786 said:
PV=nRT

condtion to be valid:

the gas has to be an ideal gas,

1.gas composed of seprate particles
2.particles behave as point masses
3.point of mass are far apart and do not exert any force


is this correct??
Sounds about right to me, but I would add ellastic collisions to that list. :approve:
 
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