Combustion reaction - Study guides, Class notes & Summaries

10th Grade Honors Chemistry Final Exam Already Graded A+ What is the term for the enthalpy change when one mole of a substance is burned completely in oxygen? Heat of Combustion What is the name of the process where heat is absorbed to break bonds in reactants and released when new bonds are formed in products? Bond Energy What is the term for the amount of heat needed to convert a solid into a liquid at its melting point? Heat of Fusion What is the name of the diagram th...

______ is the biggest cause of death in a fire Smoke A ______ cannot evacuate inmates until instructed by a supervisor Correctional Officer 00:13 01:41 ____ amount of fire drills per month One Each shift must conduct a fire drill every ______ Quarter Fire Triangle fuel, oxygen, heat Fire Tetrahedron fuel, oxygen, heat, chemical reaction Fire alarm notification system Strobes and horns, pull stations In case of fire sound the alar...

STCW Basic Training Exam 1 Questions and Answers 100% Pass _____________ is the result of incomplete combustion smoke Black or dark grey indicates a ______ fire or a _________ of oxygen hot, lack Chain reaction -you can have oxygen, heat, and fuel in the same place and still not have a fire -fuel and oxygen relationship must be balanced (i.e. in the flammable range) -heat must be sufficient to bring fuel to its ignition Fog Applicators -both high and low velocity extinguish fir...

What is the fourth requirement needed in the fire tetrahedron for flames to exist? A. Uninhibited chain reaction B. Uniterm-1nhibited chemical reaction C. Combustion D. Smoke B. Uninhibited chemical reaction Normal oxygen content in a atmosphere is ....... %. A. 19.5 to 22 B. 19 to 21 C. 17 to 18 13.5 to 17 A. 19.5 to 22 A deep fat fryer fire is classified as a ...... fire. A. AlphaB. Bravo C. Charlie D.Delta B. Bravo Potassium Bicarbonate Powder (PKP) ...... A. breaks the combust...

OCR 2023 Chemistry A H032/02: Depth in chemistry AS Level Question Paper & Mark Scheme (Merged) (i) The uncertainty in each thermometer reading is ±0.5°C and the uncertainty in the measured volume of water is ±2cm3. Determine whether the temperature change or the measured volume of water has the greater percentage uncertainty - ANSpercentage uncertainty= (Absolute Uncertainty / Measured Value) x 100 uncertainty of measure volume of water= 2/200 x 100= 1 uncertainty of temp ris...

What is the fourth requirement needed in the fire tetrahedron for flames to exist? A. Uninhibited chain reaction B. Uniterm-1nhibited chemical reaction C. Combustion D. Smoke B. Uninhibited chemical reaction Normal oxygen content in a atmosphere is ....... %. A. 19.5 to 22 B. 19 to 21 C. 17 to 18 13.5 to 17 A. 19.5 to 22 A deep fat fryer fire is classified as a ...... fire. A. AlphaB. Bravo C. Charlie D.Delta B. Bravo

Fires involve a heat-producing chemical reaction between fuel and: (117) [4.3.11] A. a catalyst. B. an oxidizer. C. free radicals. D. a reducing agent. - ️️B. an oxidizer When a substance changes from one type of matter into another, such as two or more substances combining to form compounds, the substance undergoes a: (118) [4.3.11] A. dissolution. B. metamorphosis. C. chemical reaction. D. physiological change. - ️️C. chemical reaction Which statement about energy...

OCR A LEVEL ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS What is the melting and boiling points of alkanes like? - ANSWER--as chain length increases so does the strength of the intermolecular forces as there is greater surface area for contact between molecules and hence stronger london forces and therefore the melting/boiling points are highr for longer chain. What is a structura/chain isomer? - ANSWER--Same molecular formula but a different structural formula Wh...

Exothermic Process 64 Practice Questions with Verified Answers 1: What is an exothermic process? - correct answer - An exothermic process is a chemical reaction or physical change that releases heat to its surroundings. 2: Give an example of an exothermic reaction. Combustion of methane (CH4 + 2O2 ? - correct answer - CO2 + 2H2O + heat) is an example of an exothermic reaction. 3: How can you identify an exothermic reaction in a laboratory setting? - correct answer - An exothermic ...

The three most important chemical elements particular to firefighting are - Answer Carbon, Hydrogen, Oxygen Common materials that burn all contain the chemical element of - Answer Carbon (Paper, wood, cloth, plastic, flammable liquids) When oxygen combines with a combustible material (fuel) and heat is introduced, the combination creates - Answer Combustion Combustible materials contain energy of - Answer Potential Heat energy always moves from - Answer Warm to cool/Hot to ...