IB Chemistry Topic S1.5.2 Deviations from Ideal Gas Behavior Revision Notes (SL/HL)

IB Chemistry Topic S1.5.2 Deviations from Ideal Gas Behavior Revision Notes (SL/HL) | RevisionDojo

Written by official IB examiners

Limitations of the Ideal Gas Model and Deviations of Real Gases

You're inflating a balloon on a chilly winter day.
You notice that the balloon doesn’t expand as much as it would on a warm day, even though you’ve filled it with the same amount of air. Why is this?

The answer lies in the behavior of gases under different conditions.

Why Do Real Gases Deviate from Ideal Gas Behavior?

The ideal gas model is based on several simplifying assumptions, as explored in the previous section:
1. Gas particles have negligible volume compared to the volume of their container.
2. There are no intermolecular forces between gas particles.
3. Collisions between gas particles are perfectly elastic.
4. The kinetic energy of gas particles is directly proportional to their temperature in kelvin.
While these assumptions work well for many gases under standard conditions, they break down under specific circumstances.
Real gases deviate from ideal behavior primarily due to:
1. Intermolecular Forces: At low temperatures, attractive forces between particles become significant.

Nice try, unfortunately this paywall isn't as easy to bypass as you think. Want to help devleop the site? Join the team at https://revisiondojo.com/join-us. exercitation voluptate cillum ullamco excepteur sint officia do tempor Lorem irure minim Lorem elit id voluptate reprehenderit voluptate laboris in nostrud qui non Lorem nostrud laborum culpa sit occaecat reprehenderit

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Duis aute irure dolor in reprehenderit

Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit.

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Unlock the rest of this chapter with a free account

Limitations of the Ideal Gas Model and Deviations of Real Gases

You're inflating a balloon on a chilly winter day.
You notice that the balloon doesn’t expand as much as it would on a warm day, even though you’ve filled it with the same amount of air. Why is this?

The answer lies in the behavior of gases under different conditions.

Why Do Real Gases Deviate from Ideal Gas Behavior?

The ideal gas model is based on several simplifying assumptions, as explored in the previous section:
1. Gas particles have negligible volume compared to the volume of their container.
2. There are no intermolecular forces between gas particles.
3. Collisions between gas particles are perfectly elastic.
4. The kinetic energy of gas particles is directly proportional to their temperature in kelvin.
While these assumptions work well for many gases under standard conditions, they break down under specific circumstances.
Real gases deviate from ideal behavior primarily due to:
1. Intermolecular Forces: At low temperatures, attractive forces between particles become significant.

Definition

Paywall

(on a website) an arrangement whereby access is restricted to users who have paid to subscribe to the site.

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Note

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam quis nostrud exercitation.

Excepteur sint occaecat cupidatat non proident

Tip

Lorem ipsum dolor sit amet, consectetur adipiscing elit.
Sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.
Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
Duis aute irure dolor in reprehenderit in voluptate velit esse cillum.

Structure 1. Models of the particulate nature of matter5 subtopics

Structure 2. Models of bonding and structure4 subtopics

Structure 3. Classification of matter2 subtopics

Reactivity 1. What drives chemical reactions?4 subtopics

Reactivity 2. How much, how fast and how far?3 subtopics

Reactivity 3. What are the mechanisms of chemical change?4 subtopics

IB Chemistry S1.5.2 Deviations from Ideal Gas Behavior Notes

Structure 1. Models of the particulate nature of matter5 subtopics

Structure 2. Models of bonding and structure4 subtopics

Structure 3. Classification of matter2 subtopics

Reactivity 1. What drives chemical reactions?4 subtopics

Reactivity 2. How much, how fast and how far?3 subtopics

Reactivity 3. What are the mechanisms of chemical change?4 subtopics

Limitations of the Ideal Gas Model and Deviations of Real Gases

Why Do Real Gases Deviate from Ideal Gas Behavior?

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account

Limitations of the Ideal Gas Model and Deviations of Real Gases

Why Do Real Gases Deviate from Ideal Gas Behavior?

anim nostrud sit dolore minim proident quis fugiat velit et eiusmod nulla quis nulla mollit dolor sunt culpa aliqua

Duis aute irure dolor in reprehenderit

Excepteur sint occaecat cupidatat non proident

Unlock the rest of this chapter with a free account