Answered: (a) how many grams of methane should…

(a) how many grams of methane should the fuel injection system send to the cylinder to consume 80% of the O2 in the air. Assume air is 21% by volume O2 and 79% by volume N₂.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Kinetic-Theory of Gases

Kinetic theory of gases is the model or method which was developed in the 19th century by Maxwell and Boltzmann. This is possible as the interatomic force which is of short-range forces that are important for solids and liquids can be neglected for gases. This theory or gas law gives a molecular interpretation of the pressure and temperature of a gas and is consistent with gas laws and Avogadro’s hypothesis. This theory is very helpful to correctly explain the specific heat capacities of many gases, kinetic energy and it also explains the transport qualities such as viscosity, thermal conductivity, and diffusion with molecular parameters. As stated in the kinetic-molecular theory, the temperature of a substance or gas particle is related to the average kinetic energy of the particles of that substance. When a substance is heated, some of the absorbed energy is stored within the particles, while some of the energy increases the motion of the particles, called average kinetic energy.

Question

Methane reacts with O₂ according to the equations
CH4 (g) + O2
CO₂ (g) + 2 H₂O (g)
CH4 (g) + O2
+ O₂
CO (g) + 2 H₂O (g)
Assume the volume of one cylinder of an automobile
engine is 2,000 mL. Pre-heated air enters the engine at
50°C and 1 atm of pressure.
(a) how many grams of methane should the fuel injection
system send to the cylinder to consume 80% of the O2 in
the air. Assume air is 21% by volume O2 and 79% by
volume N₂.
(b) Calculate the partial pressure of CO2 in the
combustion or exhaust gas. Assume the temperature of
the exhaust gas = 500°C and the exhaust gas contains
CO2 and CO at 9:1 mass ratio.

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