
Concept explainers
(a)
Interpretation:
The Lewis structure of methane needs to be drawn.
Concept Introduction:
The Lewis structure of any molecule indicates the bonding of atoms present in the molecule. It can be drawn with the help of number of valence electrons in the constituent atoms. The combustion reaction is an exothermic reaction which is the reaction of molecule with oxygen to form carbon dioxide and water. The energy released during the combustion is called as enthalpy of combustion.
(b)
Interpretation:
The mass of transported LNG in the one tank needs to be determined.
Concept Introduction:
The relation between density and mass of any object is defined as follows:
Here, m is mass and V is volume.
(c)
Interpretation:
The volume of LNG obtained from one tank according to the given information needs to be calculated.
Concept Introduction:
The following conversion factor is used to calculate the volume in L.
1 million gallon = 3785411.8 L
(d)
Interpretation:
The balanced
Concept Introduction:
The combustion of hydrocarbon takes place in the presence of oxygen and results in the formation of carbon dioxide and water. If the reaction is endothermic, the heat is required and if it is endothermic the heat is released.
(e)
Interpretation:
The mass of oxygen required for reaction with methane in one tank of LNG needs to be determined.
Concept Introduction:
The combustion reaction is an exothermic reaction which is the reaction of molecule with oxygen to form carbon dioxide and water. The energy released during the combustion is called as enthalpy of combustion.
(f)
Interpretation:
The amount of heat released when methane from one tank of LNG is burned needs to be calculated.
Concept Introduction:
The combustion reaction is an exothermic reaction which is the reaction of molecule with oxygen to form carbon dioxide and water. The energy released during the combustion is called as enthalpy of combustion.

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Chapter 14 Solutions
Basic Chemistry (5th Edition)
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