
Interpretation:
Increase in energy consumption between
Concept Introduction:
Energy is the property that is required by an object to perform work and to heat itself and it can be measured.
The average change is calculated by dividing the change in the value by the elapsed time.

Answer to Problem 57E
Solution:
a)
The energy consumption between
b)
The energy production between
c)
The gap between production and consumption in
Explanation of Solution
a) The increase in the energy consumption between 1949 and 2012 and the average yearly increase during this period.
The energy consumption in
The average energy consumption between
The energy consumption in
Substitute the value of energy consumption in
Hence, the average yearly energy consumption between
b) The increase in energy production between 1949 and 2012 and average yearly increase during this period.
The energy production in
The average energy production between
The energy production in
Substitute the value of energy production in
Hence, the energy production between
c) The gap between production and consumption in 2012.
The gap between production and consumption in
The gap between production and consumption in
Substitute the value of energy production and energy consumption in the above expression.
Hence, the gap between production and consumption in
The energy consumption between
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Chapter 9 Solutions
Chemistry In Focus
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