2023-02-14 19:59:22 +00:00
|
|
|
---
|
|
|
|
|
author: Akbar Rahman
|
|
|
|
|
date: \today
|
|
|
|
|
title: MMME2047 // Gas Mixtures and Combustion
|
|
|
|
|
tags: [ combution, gas_mixtures ]
|
|
|
|
|
uuid: 5ed55ce0-e6b1-423c-90ac-96e1c8cbe43f
|
2023-02-27 10:47:52 +00:00
|
|
|
lecture_slides: [ ./lecture_slides/Combustion-chemistry2022-2023.pptx, ./lecture_slides/Combustion-chemistry2-2022-2023.pptx, ./lecture_slides/CombustionSeminar2.pptx ]
|
|
|
|
|
lecture_notes: [ ./lecture_notes/combustion22-23.pdf, ./lecture_notes/Combustion2-2022-2023.pdf ]
|
|
|
|
|
exercise_sheets: [ ./exercise_sheets/Questions about gas mixtures.docx ]
|
2023-02-14 19:59:22 +00:00
|
|
|
---
|
|
|
|
|
|
|
|
|
|
# Law of Partial _____
|
|
|
|
|
|
|
|
|
|
Given that there are $i$ gas components completely mixed and occupying a
|
|
|
|
|
volume $V$ at temperature $T$.
|
|
|
|
|
|
|
|
|
|
## Pressure
|
|
|
|
|
|
|
|
|
|
$$p = \sum_i p_i$$
|
|
|
|
|
|
|
|
|
|
given that the volume $p$ and all $p_i$ are acting in are equal.
|
|
|
|
|
|
|
|
|
|
## Internal Energy
|
|
|
|
|
|
|
|
|
|
$$U = \sum_i U_i$$
|
|
|
|
|
|
|
|
|
|
## Volumes
|
|
|
|
|
|
|
|
|
|
$$V = \sum_i V_i$$
|
|
|
|
|
|
|
|
|
|
given that the pressures of $V$ and all values of $V_i$ are equal.
|
|
|
|
|
|
|
|
|
|
This is useful as $V \propto n$ meaning that we can use volumes to
|
|
|
|
|
achieve stoichiometric (ideal) mixtures of gases for combustion reactions.
|
|
|
|
|
|
|
|
|
|
# Avogadro's Number and the Mole
|
|
|
|
|
|
|
|
|
|
Avogadro's Number is roughly $6.022\times10^{23}$.
|
|
|
|
|
The mass in grams of this many particles of an element is pretty much equal to:
|
|
|
|
|
|
|
|
|
|
- its atomic mass number
|
|
|
|
|
- the number of nucleons in the nucleus
|
