Concept explainers
(a)
Interpretation: An overall reaction for the production of methane needs to be determined.
Concept Introduction : The reaction of coal with water is as follows:
Here, coal reacts with superheated steam to give CO and
(a)
Answer to Problem 6.75P
Overall reaction is
Explanation of Solution
Multiply equation (1) by 2 and add equation (1) and (2) and (3).
Overall reaction is
(b)
Interpretation: The value of
Concept Introduction:
(b)
Answer to Problem 6.75P
Explanation of Solution
Multiply equation (1) by 2 and add equation (1) and (2) and (3).
(c)
Interpretation: The total heat for gasifying 1.00 kg of coal needs to be determined.
Concept Introduction : The balanced reaction for combustion of methane is:
Methane reacts with oxygen to give carbon dioxide and water.
Here, m and n are moles of products and reactants.
(c)
Answer to Problem 6.75P
The total heat is
Explanation of Solution
The balanced reaction for combustion of methane is:
Now use following conversion factors to determine the heat for combustion of 1.00 kg of methane.
The conversion factors are as follows:
Use the conversion factors to determine the heat for 1.00 kg of coal.
Thus, the heat for combustion of 1.00 kg of methane is
Thus, the total heat is
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Chapter 6 Solutions
Principles of General Chemistry
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