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Bio-gas digestion system
Methane Gas The combustion of methane is a very exothermic reaction (ΔH = -891 kJ/mol) Main component of "natural gas Can be found Underground Swamps and marshes Livestock (methanogenic bacteria)
Something we may not know Cow can produce a lot of gas per day
How to Simple equipment to recreate fart Create methane using daily food waste vegetables fruit
Lab Create a smaller scale system Measure how much gas produce per pound of food Using the result to calculate the energy the process can produce
Product Gas (methane) Fertilizer
Enthalpy of Combustion Calculations. Example Q. 4.6g of ethanol (C 2 H 5 OH) is burned. The energy released raised the temperature of 0.5kg of water by.
Heat of reaction equations Using simultaneous equations.
Thermochemical Equations Ch 13 Lesson 2 Tracking Energy Through a Reaction.
OB: to practice and master energy unit conversions, and to include energy into Stoichiometry problems. Calculators and reference tables now.
Bond Enthalpies Section 5.4. Introduction More Good Stuff For H 2 the thermochemical equation describing the bond enthalpy is: H 2(g) → 2H (g) ∆H θ =
Measuring and Expressing Heat Changes Enthalpy The heat content of a substance that has at given temperature and pressure Change in heat content.
Today, we will burn a gummy worm containing 2.1 g of sucrose (C 12 H 22 O 11 ). When one mole of sucrose burns in oxygen gas, it produces carbon dioxide.
Potential Energy Diagrams Chemical Kinetics Mrs. Kay.
Lesson 4 – Representing Enthalpy Changes. Method One THERMOCHEMICAL EQUATIONS WITH ENERGY TERMS THERMOCHEMICAL EQUATIONS WITH ENERGY TERMS a balanced.
Thermochemistry Exothermic reactions release heat to the surroundings. Fe 2 O Al 2 Fe + Al 2 O kJ Potassium Permanganate Reaction Demo.
Exothermic and Endothermic Reactions. Chemical Reactions All chemical reactions involve bond breaking and bond forming. Energy is needed to break bonds.
What is biogas? A mixture of methane and carbon dioxide CH 4 CO 2 Methane or ‘swamp gas’, produced naturally in swampy ponds Methane or ‘swamp gas’, produced.
BIOGAS By Jenni, Tinh, Ly and Chau. Introduction To Biofuel Biofuels are fuels that have been developed from other materials such as plant matter and.
Food Matters – Final $100 $200 $400 $300 $400 VocabularyMoleculesMain IdeasFun Facts $300 $200 $400 $200 $100 $500 $100.
Page 34 In a chemical reaction, bonds in the reactants are broken and the atoms rearrange to form new bonds in the products. Flames or heat associated.
But more importantly is something called free energy G = H - TS want G to be negative, so that the free energy of the universe decreases, this is a spontaneous.
Unit Industrial Chemistry and Hess’s law. Go to question
Thermochemical equations Thermochemical equations Thermochemical equation = a balanced chemical equation that includes the physical states.
Exothermic and Endothermic Reactions. - What is Exothermic and Endothermic Reactions ? Exothermic reactions : Reactions accompanied with producing heat.
Aims of lesson: To investigate the effect of catalysts on activation energy and enthalpy change.
REPRESENTING ENTHALPY CHANGES. 1. ΔH Notation 2. Thermochemical Equation 3. Potential Energy Diagram.
Unit 3 Industrial Chemistry and Hess’s law. Go to question In the production of ammonia in the Haber Process, Which is a raw material used.
Thermochemisty (Enthalpy) and Hess’s Law Chapter 10 Sections
Thermochemistry Unit Section Practice Problem #15: a. H 2 O (g) H 2(s) + 1/2O 2(g) H 2 O (g) KJ b. CaCl 2(s) Ca (s) + Cl 2(g) CaCl 2(s)
Energy & Chemical Reactions. Energy is needed to break bonds apart. Energy is released when bonds are formed. So how do exothermic reactions give out.
Unit 8 - Stoichiometry. 2CuCl + H 2 S → Cu 2 S +2HCl The coefficients in the equation can either mean particles or moles.
Created by Lynne Crandall University of Michigan Revised by Mark Kondrak CLA Language Center University of Minnesota Could you put an image here?
THERMOCHEMISTRY. Definitions #1 Energy: The capacity to do work or produce heat Potential Energy: Energy due to position or composition Kinetic Energy:
By: Jen Doak. Biogas refers to the gas that is produced by the breakdown of organic matter in the presence of NO oxygen (anaerobic digester) Produced.
BiomassEnergy. BiomassEnergy - the energy generated from plants Energy from plants and vegetation.
Combustion Reaction. Heat of Reaction (q) C 6 H 14(l) + O 2 (g) CO 2 (g) + H 2 O (g) Energy required to break bonds Energy released as bonds form.
Chapter 17 Thermochemistry. Basics Thermochemistry Thermochemistry –Study of heat changes in a chemical reaction Calorimeter Calorimeter –Instrument used.
Entry Task: May 22 nd 23 rd Block 1 Question: What is temperature change of 50.0 grams of water absorbs 35kJ of energy. (specific heat 4.18 J/gC) You have.
Bond…. Bond Energy. All physical stuff is made of … –Matter! (Chemicals – atoms and molecules) In Chemical reactions, atoms rearrange to form new substances.
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved Thermochemical Equations Thermochemical Equations.
Chapter 16 Chemical Reactions That Involve Heat. The study of the changes in heat in chemical reactions. Thermochemistry.
Enthalpy. Internal Energy Equation ΔE = Q + W = Q + PΔV If the reaction is carried out at a constant volume (ΔV = 0), then ΔE = Q If volume is constant,
Enthalpy of Combustion. HIGHER GRADE CHEMISTRY CALCULATIONS Enthalpy of combustion. The enthalpy of combustion of a substance is the amount of energy.
Chapter 25 – Energy from Chemical Reactions. Thermochemical Equations Remember: ΔH = H products – H reactants. The heat of reaction, ΔH, is negative when.
Hess’s Law “In going from a particular set of reactants to a particular set of products, the change in enthalpy is the same whether the reaction takes.
Thermochemistry. Definitions Energy – capacity for doing work or supplying heat. Thermochemistry – study of energy changes that occur during phase changes.
Section 11.1 and 11.2 Due Friday, Feb When 435 J of heat is added to 3.4 grams of olive oil at 21 o C, the temperature increases to 85 o C. What.
Q6 1. Bond Energy is the average energy required to break 1 mole of a covalent bond in the gaseous state. 2.
Basic Chemistry Copyright © 2011 Pearson Education, Inc. 1 Chapter 9 Chemical Quantities in Reactions 9.5 Energy in Chemical Reactions Cold packs use an.
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Lecture B. Day 4 Activities: Exothermic or endothermic? Objectives –Be able to identify exothermic and endothermic reactions based on temperature change.
38.How many liters of propane (C 3 H 8 ) will undergo complete combustion with 34.0 L of oxygen gas?
How would you sort these?. AS Chemistry Unit 2 Introduction.
BIOGAS PRODUCTION. Introduction Animal and agricultural wastes constitute a high proportion of biomass and their utilization and recycling is important.
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