alleryStart learning →How is energy defined?
AThe ability to do work
BThe total mass of a system
CThe rate of a chemical change
DThe disorder within a system
Answer & Solution
Correct answer: A. The ability to do work
1. Energy is defined as the ability to do work.
2. Electrical energy, light energy and heat energy are all familiar forms of it.
3. Disorder within a system is entropy, a separate quantity with its own symbol.
4. Neither mass nor reaction rate is what the word energy names.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 6 "Metabolism", section 6.2 Potential, Kinetic, Free, and Activation Energy_
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