201GasLaws

201GasLaws - Gases Chapter 6 (Petrucci et al.) Lesson 6 Gas...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Lesson 6 1 Lesson 6 Gases Chapter 6 (Petrucci et al.) Lesson 6 Gas laws • Gas laws are mathematical equations relating the volume to the number of moles, temperature and pressure of gases: V = f ( n , T , P ) • The function f ( n , T , P ) is relatively simple for gases because intermolecular forces in gases are generally very weak • Ideal gas law: PV = nRT The ideal gas law does not take into account gas type. Is this a reasonable hypothesis? Lesson 6 Definition of pressure P = force / area • Which force? – Force resulting from the collision of the gas molecules against the walls of the container • Which area? – Area of the walls of the container holding the gas
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Lesson 6 2 Lesson 6 g h A g A h A g V A g m A F P Hg Hg Hg Hg Hg Hg Hg . . . . . . . . A g m A F P air air air . P Hg = P air h = 76 cm Hg = 760 mm Hg = 760 torr = 1 atm (0 o C) m hg = m air Lesson 6 Petrucci et al. Measuring pressure with a open- end manometer Lesson 6 Boyle’s Law (1662) Petrucci et al.
Background image of page 2
Lesson 6 3 Lesson 6 Boyle’s Law • The product PV of a gas is constant for a given temperature and amount of substance: PV = nC • Therefore: P nC V Lesson 6 Charles’ Law (18 th Century) Lesson 6 Charles’ Law (18 th Century) The volume of a gas is a linear function of its temperature: c
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 7

201GasLaws - Gases Chapter 6 (Petrucci et al.) Lesson 6 Gas...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online