Sustainable Energy
1st Edition
ISBN: 9781133108689
Author: Richard A. Dunlap
Publisher: Cengage Learning
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Chapter 1, Problem 2P
A simple way of looking at the energy associated with the combustion of methane [as shown in equation (1.15)] is to view the oxidation of the carbon by equation (1.13) and the oxidation of hydrogen by equation (1.19). Based on the energies involved in these processes, discuss the validity of this approach.
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Provide a clear, step-by-step handwritten solution (without any detailed explanations). Ensure the work is simplified and completed manually, adhering to expert-level accuracy. Refer to the provided image for clarity and ensure all calculations are double-checked for correctness before submission. Thank you!.
Question 1:
A cylindrical soil sample is connected to two water reservoirs:
a) Determine the pressure, elevation, and total head at a point one meter above the bottom of the sample (point A).
b) Calculate the pore pressure and effective stress at point A if the soil has a saturated unit weight of 18.7kN/m^3. c) Determine the water flow rate though the sample if the soil has a coefficient of permeability of 0.19 cm/s and the radius of the sample is 20 mm.
d) Is it possible for the soil to reach the “quick condition”(zero effective stress) by raising the level of the water in the upper reservoir? Why or why not?.
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Please provide a clear, step-by-step simplified handwritten working out (no explanations!), ensuring it is done without any AI involvement. I require an expert-level answer, and I will assess and rate based on the quality and accuracy of your work and refer to the provided image for more clarity. Make sure to double-check everything for correctness before submitting thanks!.
Questions 1:
A clay rich soil is totally saturated, has a bulk density of 2.12 g/cm3, and a void ratio of 0.33.
a) Draw the full three phase diagram for this soil including all the volume and mass quantities.
b) Determine the density of the soil solids.
c) Determine the total density of the soil if the saturation was reduced to 50%.
Question 2:
A soil sample was tested yielding the following grain-size distribution chart: (refer to the image provided)
The soil fines (inorganic) were also tested and had a liquid limit of 76 and a plastic limit of 49
Determine the coefficients of uniformity and curvature.…
Note:
Provide a clear, step-by-step handwritten solution (without any detailed explanations). Ensure the work is simplified and completed manually, adhering to expert-level accuracy. Refer to the provided image for clarity and ensure all calculations are double-checked for correctness before submission. Thank you!.
Question 1:
A cylindrical soil sample is connected to two water reservoirs:
a) Determine the pressure, elevation, and total head at a point one meter above the bottom of the sample (point A).
b) Calculate the pore pressure and effective stress at point A if the soil has a saturated unit weight of 18.7kN/m^3. c) Determine the water flow rate though the sample if the soil has a coefficient of permeability of 0.19 cm/s and the radius of the sample is 20 mm.
d) Is it possible for the soil to reach the “quick condition”(zero effective stress) by raising the level of the water in the upper reservoir? Why or why not?.
Question 2:
A new structure is planned to be constructed in…
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