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An engine is using hydrocarbon for fuel at a barometric pressure of 540 mmHg absolute. The air is practically dry at a temperature of 20°F. The exhaust gases leave the engine at 1000°F. The Orsat analysis of the combustion gas is conducted at 25°C and 750 mmHg and shows 15.39% CO2, 1.67% O2 82.94%N2. Calculate a) the percent excess air, b) atom carbon to atom hydrogen ratio in the fuel, and c) the liters of exhaust gases, under the conditions they leave the engine, per liter of air entering the air intake.

An engine is using hydrocarbon for fuel at a barometric pressure of 540 mmHg absolute. The air is practically dry at a temperature of 20°F. The exhaust gases leave the engine at 1000°F. The Orsat analysis of the combustion gas is conducted at 25°C and 750 mmHg and shows 15.39% CO2, 1.67% O2 82.94%N2. Calculate a) the percent excess air, b) atom carbon to atom hydrogen ratio in the fuel, and c) the liters of exhaust gases, under the conditions they leave the engine, per liter of air entering the air intake.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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An engine is using hydrocarbon for fuel at a barometric pressure of 540 mmHg absolute. The air is practically dry at a temperature of 20°F. The exhaust gases leave the engine at 1000°F. The Orsat analysis of the combustion gas is conducted at 25°C and 750 mmHg and shows 15.39% CO2, 1.67% O2, 82.94%N2. Calculate a) the percent excess air, b) atom carbon to atom hydrogen ratio in the fuel, and c) the liters of exhaust gases, under the conditions they leave the engine, per liter of air entering the air intake.
Transcribed Image Text:An engine is using hydrocarbon for fuel at a barometric pressure of 540 mmHg absolute. The air is practically dry at a temperature of 20°F. The exhaust gases leave the engine at 1000°F. The Orsat analysis of the combustion gas is conducted at 25°C and 750 mmHg and shows 15.39% CO2, 1.67% O2, 82.94%N2. Calculate a) the percent excess air, b) atom carbon to atom hydrogen ratio in the fuel, and c) the liters of exhaust gases, under the conditions they leave the engine, per liter of air entering the air intake.
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