Joule is the unit of ?
Correct answer: D. All of these
- A. Heat
- B. Energy
- C. Work
- D. All of these
Explanation
Heat is measured in joules. The energy units in which heat changes, usually expressed in SI system are joule (J) and kilojoule (kJ). Work is measured in Joules in SI units. Joule (J) is the unit of energy, work and heat.
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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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