Joule is the unit of:
Correct answer: B. Work
- A. Force
- B. Work
- C. Power
- D. Velocity
Explanation
The erg is a unit of energy and work in the CGS system. One erg is equal to one dyne applied over a distance of one centimeter. Like the dyne, the erg is not a unit of power; it is a unit of energy and work.
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About Thermochemistry and Energetics of Chemical Reactions
Thermochemistry measures energy changes in chemical reactions and distinguishes exothermic from endothermic processes. Work covers systems, surroundings and state functions, internal energy, the first law of thermodynamics, enthalpy and Hess's law, including the sign conventions used when heat enters or leaves a system.
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