5. A test run using this coal showed a dry products of combustion analysis by volume of nitrogen equals82.5%, molecular weight of 30 kg flue gas per mol dry flue gas, and the weight of this dry flue gas is15.03 kg per kg of coal. The actual ash-pit sample was 0.15 kg per kg of coal, of which 20% was carbon.What is the percentage excess air supplied to the fuel combustion in percent?6. Find the partial pressures in kPa of oxygen in atmospheric air of 100 kPa which contains by weight23.1% oxygen and 76.9% nitrogen.

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Find the partial pressures in kPa of oxygen in atmospheric air of 100 kPa which contains by weight 23.1% oxygen and 76.9% nitrogen.

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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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

5. A test run using this coal showed a dry products of combustion analysis by volume of nitrogen equals
82.5%, molecular weight of 30 kg flue gas per mol dry flue gas, and the weight of this dry flue gas is
15.03 kg per kg of coal. The actual ash-pit sample was 0.15 kg per kg of coal, of which 20% was carbon.
What is the percentage excess air supplied to the fuel combustion in percent?
6. Find the partial pressures in kPa of oxygen in atmospheric air of 100 kPa which contains by weight
23.1% oxygen and 76.9% nitrogen.

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