The reason as why there is worry about energy conservation if the first law of thermodynamics indicates that the total energy content of the universe is constant is to be stated. The meaning of quality of energy, rather than the quantity is to be stated along with examples. Whether the quality of energy in the universe is changing or not even though the quantity of energy may be constant is to be stated. Concept Introduction: Thermodynamic variables gives information regarding the spontaneity of chemical reactions. The first law of thermodynamics establishes the relationship between heat and work. The expression for the first law of thermodynamics is shown below. Δ U = Q − W .

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Chapter 12, Problem 8CR

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The reason as why there is worry about energy conservation if the first law of thermodynamics indicates that the total energy content of the universe is constant is to be stated. The meaning of quality of energy, rather than the quantity is to be stated along with examples. Whether the quality of energy in the universe is changing or not even though the quantity of energy may be constant is to be stated.

Concept Introduction:

Thermodynamic variables gives information regarding the spontaneity of chemical reactions. The first law of thermodynamics establishes the relationship between heat and work.

The expression for the first law of thermodynamics is shown below.

ΔU=Q−W.

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