Exam 10: Overview of Combustion Chemistry

Given the following reactions: A. $\cdot \mathrm { HO } _ { 2 } + \mathrm { H } _ { 2 } \rightarrow \cdot \mathrm { H } + \mathrm { H } _ { 2 } \mathrm { O } _ { 2 }$ B. $\mathrm { HCO } + \cdot \mathrm { H } \rightarrow \mathrm { CH } _ { 2 } \mathrm { O }$ C. $\mathrm { C } _ { 2 } \mathrm { H } _ { 4 } \rightarrow \cdot \mathrm { CH } _ { 3 } \mathrm { CH }$ D. $\mathrm { CH } _ { 4 } + \mathrm { O } _ { 2 } \rightarrow \cdot \mathrm { CH } _ { 3 } + \cdot \mathrm { HO } _ { 2 }$ Which of these are termination steps?

Combustion is a _______ reaction.

When a gun is fired, what is the sequence of energy conversions?

Given the following data regarding octane: Heat capacity: 255.6 J/(g °C) Boiling point: 127°C Heat of vaporization: 41.4 kJ/mole AIT: 220°C Density: 0.70 g/mL Calculate the total heat (Q) required to heat 15.0 mL of octane from room temperature (25°C) to the AIT temperature. Report the value in kJ

A pressure wave moves forward from a combustion reaction. Because of the buildup of heat, a successive wave moves faster and eventually overtakes the first. This results in formation of a

Which of the following is not a means of heat transfer?

Given the following data regarding octane: Heat capacity: 255.6 J/(g °C) Boiling point: 127°C Heat of vaporization: 41.4 kJ/mole AIT: 220°C Density: 0.70 g/mL Calculate the heat (Q) required to heat 15.0 mL of octane from room temperature (25°C) to the boiling point. Report the value in kJ

Given the following data, calculate how many liters of gas are produced in the combustion of one gram of butane, C₄H₁₀. Report your result in L/g and assume STP. Standard heats of formation (kJ/mole): H₂O(g): -241.82 CO₂(g): -393.5 Butane: -147.6 Formula weight of butane: 58.12 g/mole L/mole of a gas at STP: 22.4L

Given the following data, calculate how many moles of gas are produced in the combustion of one mole of butane, C₄H₁₀. Standard heats of formation (kJ/mole): H₂O(g): -241.82 CO₂(g): -393.5 Butane: -147.6 Formula weight of butane: 58.12 g/mole L/mole of a gas at STP: 22.4L