## Definition of Ideal Gases?

$PV=nRT$

Ray Guo 4C
Posts: 90
Joined: Fri Sep 28, 2018 12:15 am

### Definition of Ideal Gases?

What defines ideal gases?

riddhiduggal
Posts: 30
Joined: Fri Sep 28, 2018 12:21 am

### Re: Definition of Ideal Gases?

it refers to gases at STP- standard temperature and pressure

Posts: 35
Joined: Fri Sep 28, 2018 12:19 am

### Re: Definition of Ideal Gases?

Ideal gases are all theoretical. They are made up of point-sized randomly moving particles whose interactions are perfectly elastic collisions, meaning no energy loss or gain occurs when the particles hit each other. Ideal gases also don't take into account intramolecular forces and volume created by e- repulsion within molecules, which is why the most accurate pressure of gases is better calculated with (P + n2a / V2)(V- nb) = nRT.

Eva Zhao 4I
Posts: 86
Joined: Sun Sep 29, 2019 12:16 am

### Re: Definition of Ideal Gases?

Ideal gases have negligible volume, no attractive or repulsive forces, random movement, and perfectly elastic collisions. Most gases behave close to the ideal with high temperature and low pressure; hence an ideal gas is theoretical since PV=nRT shows that pressure typically increases with temperature.